I fucking love you man, you really are good, you helped me understand, when no one else could. Your videos are educational, and they make me want to learn, most often even sensational, they make my mind yearn. No more will I suffer to profs who made me distressful, i'll always remember your lessons and.. I hope that was helpful :D teaching me bio from high school all the way through university! thank you boss man
Thank you so much! I'm struggling in my physics course this summer because my teacher would rather add a thousand additional assignments than teach his subject 😢
Your videos are a god send....thank you for explaining things in a simple, common sense way. Now I have a chance of passing Physics. I only wish I had found you sooner.
Thank You so-so much!!! This year I took AP biology; your videos were extremely helpful. And this year, I will have AP Physics and AP chemistry. This video really helped me understand where the formulas come from (which is very important for me, since I do not like memorization). I wish you all the best! And thank you!
Mr anderson you are so awesome; i'm in an intro physics class in college and i'm using your videos haha just like in the days i used your AP Bio videos in high school x)
First of all, thanks for all the great videos! I watched the entire chem series (prior to the AP Chem test). Working my way through these for the SAT subject test on October 11. I was just curious as to whether or not there will be more AP Physics videos, and if there are, what would be the subjects of those? Also, are there any other study tools you'd recommend for physics to prepare for the subject test? Thanks again for the help! Really makes a difference.
Thank you, Thank you, so muchhhh for you time and effort :) I try to learn things with concept and your video opened my mind, from the core of my heart I appreciate your work !!
During finding the impulse of the car, shouldn't we take the summation of mass of both man and the car? Because the man is inside the car. And the mass of the man should affect the impulse.
Well not exactly. If you did try to find the impulse of the car and take account for the man inside the car, you would have to calculate how much of the man's impulse went before 0,072s. The truth is, this video is a very simplified way of calculating impulse. He assumes that the force is a constant, which it's not. If you quantified the force as a function, which it is, you would have to integrate it on time in order to calculate the total impulse.
no, because the time intervals were not the same. The person wasn't attached to the car and so his body resisted a change of momentum separately to that of the car.
wrong both car and human give impulse time intervals dont matter unless maybe if this time be very long like car and other car on 50m line than we have 2 force graph like 2 diffrent impact however still line work with some small force so not completely losee conection but we mayby can say thats was 2 impulse /impact due to two diffrent big peak in this case car with "person" person work on change oneforce shape we see as person work with full force somewhere around 70ms and car lose contact with target at araund 200ms person work force still be friction on seat ,seat belt etc in real also muscle tension there is also 2 ctd they just change shape of force graph in time let me explain you in this way = what push further 500kg bag empty 1000kg car at 50km/h with off gear and engine or 1000kg car + 5 man each 100kg at 50 km/h ? ... or try stop empty 50kg wagon from 20km/h vs with 100kg man on it ...
Here's one: The overall force affecting the system is 326N. The system steadily goes from 0 to 326N in 4,7 seconds, remains a constant 326N for 5,8 seconds and reduces steadily to 0N in 1,6 seconds. How do you calculate the overall impulse affecting the system? (Provided that the direction of the force doesn't change during all this.)
in class, we learned that if a bowling ball were to be hit by a rubber ball and a ball of putty, the rubber ball would be the one that topples it over. How does that work? From the rubber ball example, doesn't the ball that takes a longer time mean that it exerts a smaller force since there is a greater time?
1:07 1. Which ball experiences the greater change in momentum? 2:00 2. Are the change in momentum and the impulse different? 2:50 3. How does the crumple zone in the Honda Civic make the car safer for the driver during a collision? 3:30 4. Copy the problem "Calculate the impulse and the force on both the car and the man". Write the given info 6:00 5. Pause the video, and solve the problem. When you're done, unpause, and check your answer :)
Your videos are really good! They have helped me loads of the lasts few weeks. I am trying to apply the impulse-momentum relationship to the kinetic analysis of human gait but I don't understand the connection. Do you know how this is relevant in human gait?
I got 144/180 in physics after studying with physics galaxy (Ashish Arora) best tutor on TH-cam but today I found a new great teacher thanks a lot love from India 🇮🇳🇮🇳🇮🇳
Quick question here: I'd assume that when calculating the force/impulse onto the driver you'd have to add in the weight of the car as well, to get the full amount of force in the collision. Is this completely wrong and why? Thanks :)
Hi Paul, first of all, I need to commend your effort in gathering the resources to put up a nice teaching video. However, this video clip is not without flaws. I find a few parts which require amendments. More importantly, impulse = average force x time. so the calculations only give average forces, but not revealing the actual varying force which could spike much higher within a short time.
Wouldn't you need to add the masses of the car and the man when looking for the impulse of the car? After all, the TOTAL weight would be 1301 + 78 kg because the man is a part of that car's weight now, so to speak. When you're calculating for the impulse of the man himself (and only the man) then you would just calculate using 78 kg. Perhaps you have a reason as to why you only used 1301 instead of 1379 kg for the impulse of the car. Thanks!
only if man dont do diffrent movement terms off car ,but he do he do movement independently to the car ,when car stop crush on wall man still go forward so to calculate how much momentum and force he translate in to whole vehicle with man hit you need to count tension belts cushion etc ,or other word they translate its own weight in diffrent period of time more or less;) .
oh yea i do misteake probably momentum and impulse shpuld be biger like you write but force be diffrent due to diffrent in time movement so smaller force due to longer period of time when move be end be man but yea momentum and impulse is probabaly create be whole man and vehicle both .
so yea yea offcorse moemntum and impulse is results of weight car and man inside but because man deceleration slower force is lower if both be deceleratio in egzacly the same time so if he be permanently atatched to car ;) .
Jonathan kicks a .45 kg soccer ball with a force of 12 N for .2 s. What is the impulse on the soccer ball? How fast was it moving after the .2 s if it started from rest? Can anyone please help me with this problem
sorry back again, idk if it's being explained differently or something but I've gotten all the questions wrong in class by following your theory. Not sure what to do
I GOT 30/30 IN OUR PHYSICS CLASSSSSSSSS!!!!!!!!!!!!!! +Bozeman Science thanks alot
Hooray!
The 68 dislikes are from jealous physic teachers.
85
@Gopinath Prem Kumar 90
Hahahaha😄😄😄
@@palmjuice5882 97
100 lol
These videos are absolutely fantastic. This is the best channel. Thanks for taking the time to make this video. Greatly appreciated
Liked and subscribed. Thank you for a concise and straight forward explanation!
Can be frustrating when books make the basics too complicated.
my textbooks are full of jargon, but you make physics make sense!! thankyou!
I fucking love you man,
you really are good,
you helped me understand,
when no one else could.
Your videos are educational,
and they make me want to learn,
most often even sensational,
they make my mind yearn.
No more will I suffer to profs who made me distressful,
i'll always remember your lessons and..
I hope that was helpful :D
teaching me bio from high school all the way through university! thank you boss man
relax
Excellent, excellent, excellent... Very clearly explained and simplified to be broken down and practiced. Good stuff.
Thank you so much! I'm struggling in my physics course this summer because my teacher would rather add a thousand additional assignments than teach his subject 😢
Your videos are a god send....thank you for explaining things in a simple, common sense way. Now I have a chance of passing Physics. I only wish I had found you sooner.
Thank You so-so much!!! This year I took AP biology; your videos were extremely helpful. And this year, I will have AP Physics and AP chemistry. This video really helped me understand where the formulas come from (which is very important for me, since I do not like memorization). I wish you all the best! And thank you!
Thank you, I like the way you included the practical aspect.
Mr Anderson, you're a legend the video was really helpful 🤝, thank u
It was not simply helpful but very much helpful. Thanks for the video!😄😄
though I finished my BE, I got the insight of the impulse now only. Thank you sir
love your videos. To be in fact you're channel is the only place I go to understand physics :)
I appreciate it sir for putting your valuable time for creating this video. I would like to thank you.
You are the greatest human to walk this earth
I am taking my MCAT in a while,and your video really help with physics section..
this is fantastic. the car example made everything click
You are a true hero.
Mr anderson you are so awesome; i'm in an intro physics class in college and i'm using your videos haha just like in the days i used your AP Bio videos in high school x)
I love your videos!! You're a great teacher!!
Yes we all know
By the way my self SAFIN from India ...
First of all, thanks for all the great videos! I watched the entire chem series (prior to the AP Chem test). Working my way through these for the SAT subject test on October 11. I was just curious as to whether or not there will be more AP Physics videos, and if there are, what would be the subjects of those? Also, are there any other study tools you'd recommend for physics to prepare for the subject test? Thanks again for the help! Really makes a difference.
🤣 2:52 'I'm seeing a slight pattern here, sir' LOVE IT.
SO HELPFUL THANK YOU!
and thank you for the laugh tonight!
Thank you, Thank you, so muchhhh for you time and effort :) I try to learn things with concept and your video opened my mind, from the core of my heart I appreciate
your work !!
This is really good help. Thank you, and yes, i have learned.
Thank you for making this video it has helped me.
Damn! Nice and simplified explanation
This is very easy to understand. Great video!
During finding the impulse of the car, shouldn't we take the summation of mass of both man and the car? Because the man is inside the car. And the mass of the man should affect the impulse.
I think he was trying to find the impulse of the man and the car separately.
Well not exactly. If you did try to find the impulse of the car and take account for the man inside the car, you would have to calculate how much of the man's impulse went before 0,072s. The truth is, this video is a very simplified way of calculating impulse. He assumes that the force is a constant, which it's not. If you quantified the force as a function, which it is, you would have to integrate it on time in order to calculate the total impulse.
How about the boxing gloves, would you calculate the momentum of a hand and a boxing glove separately?
no, because the time intervals were not the same. The person wasn't attached to the car and so his body resisted a change of momentum separately to that of the car.
wrong both car and human give impulse time intervals dont matter unless maybe if this time be very long like car and other car on 50m line than we have 2 force graph like 2 diffrent impact however still line work with some small force so not completely losee conection but we mayby can say thats was 2 impulse /impact due to two diffrent big peak in this case car with "person" person work on change oneforce shape we see as person work with full force somewhere around 70ms and car lose contact with target at araund 200ms person work force still be friction on seat ,seat belt etc in real also muscle tension there is also 2 ctd they just change shape of force graph in time let me explain you in this way = what push further 500kg bag empty 1000kg car at 50km/h with off gear and engine or 1000kg car + 5 man each 100kg at 50 km/h ? ... or try stop empty 50kg wagon from 20km/h vs with 100kg man on it ...
I luv u sir ...thanks for sharing your knowledge... your videos are clear and effective... thanks a lot....someday I will take it place
Thanks really helping with my homework :)
glad you mentioned significant figures
Thank you so much!! It was so well explained
Thank you! this really helps!
Just found out about this channel. Thank you!
Thank you so much Sir. It really helps a lot in my studies. God Bless.
Ah, but what happens when I crash a civic into a baseball player?
let's hope you have enough money for the hospital bill
@@jonathanfong9140 if i may suggest the time would be shorter and force would be greater and proportional to the hospital bill
I really enjoy your playing !!
Thank you so much this has been such a help! :D
you are extremely helpful thank you for this video
Excellent professor
Nice lecture.
actually when you solve to figure out the force of the car you would need to account for the mass of the person, because that affects the car
I thought the same thing
Very Helpful. Thank You very much ! :)
Thanks for using the metric system^^
thank you so much, YOU are a great teacher
very clear and interesting...and so helpful thnq
You are my life saver !!!!!!!
thanks, it helped me alot
thanks for sharing your knowledge
thank you for the help.
20295.6/0.72=28188.33, not 281883.3
Aside from that, I understood the concept much better now, big thanks !
the time is 0.072s not 0.72s
get fucked
Here's one:
The overall force affecting the system is 326N. The system steadily goes from 0 to 326N in 4,7 seconds, remains a constant 326N for 5,8 seconds and reduces steadily to 0N in 1,6 seconds. How do you calculate the overall impulse affecting the system? (Provided that the direction of the force doesn't change during all this.)
((0+326)/2)*4,7+326*5,8+((326-0)/2)*1,6 for a total of 2917.7 Newton seconds, just a year too late yolo.
Thanks Paul
great videos! thanks you so much
i like your short intro music it's not annoying
Very well explained.
Give this man cookie jar!!!
Thank you so much!
in class, we learned that if a bowling ball were to be hit by a rubber ball and a ball of putty, the rubber ball would be the one that topples it over. How does that work? From the rubber ball example, doesn't the ball that takes a longer time mean that it exerts a smaller force since there is a greater time?
Good explanation
Thanks
1:07 1. Which ball experiences the greater change in momentum?
2:00 2. Are the change in momentum and the impulse different?
2:50 3. How does the crumple zone in the Honda Civic make the car safer for the driver during a collision?
3:30 4. Copy the problem "Calculate the impulse and the force on both the car and the man". Write the given info
6:00 5. Pause the video, and solve the problem. When you're done, unpause, and check your answer :)
Your videos are really good! They have helped me loads of the lasts few weeks. I am trying to apply the impulse-momentum relationship to the kinetic analysis of human gait but I don't understand the connection. Do you know how this is relevant in human gait?
looking good!!
excellent sir
U saveddd my lifeee😘😘
Wow this so amazing
It was very helpful
Thank you ever much .
@ 7:02 he meant to say If we want to figure out the Force*. Nonetheless still a great explanation of Impulse!
Thank You
Hey emilymae
excellent . I wish you were my tution teacher :)
You helped me get intuition ....
that jawline!!!!!!!!!!!!!!! anyway back to physics
mrs mendes You need to relax Mrs. Mendez, you’re a bit horny.
I got 144/180 in physics after studying with physics galaxy (Ashish Arora) best tutor on TH-cam but today I found a new great teacher thanks a lot love from India 🇮🇳🇮🇳🇮🇳
Very helpful!
Quick question here: I'd assume that when calculating the force/impulse onto the driver you'd have to add in the weight of the car as well, to get the full amount of force in the collision. Is this completely wrong and why? Thanks :)
(stopped at 2:48) now I am curious about ballistics and the affects of surface area and etc....
Legend!
Hi Paul, first of all, I need to commend your effort in gathering the resources to put up a nice teaching video. However, this video clip is not without flaws. I find a few parts which require amendments. More importantly, impulse = average force x time. so the calculations only give average forces, but not revealing the actual varying force which could spike much higher within a short time.
how tan?? Jk it was just to teach the method to solve a given problem on impulse
Great video
Sir huge fan of ur videos! I wish I can do similar efforts. Sir, please suggest me hardware and software u use! Will be great help.
kapil rathi I use Screenflow and Keynote on my Mac. If you google "educational screencast" you will find a tutorial I created. Best of luck.
His name is Mr Anderson
Awesome sir
Thanks man you're better than my Professor ;p
Should the velocity be a negative value?
Yes velocity be a negative value because it's a vector quantity ... Got it ???
thank u! bless u! kudos!
Thank you sir
Wouldn't you need to add the masses of the car and the man when looking for the impulse of the car? After all, the TOTAL weight would be 1301 + 78 kg because the man is a part of that car's weight now, so to speak.
When you're calculating for the impulse of the man himself (and only the man) then you would just calculate using 78 kg.
Perhaps you have a reason as to why you only used 1301 instead of 1379 kg for the impulse of the car.
Thanks!
physics usually likes to create "perfect" impossible scenarious
only if man dont do diffrent movement terms off car ,but he do he do movement independently to the car ,when car stop crush on wall man still go forward so to calculate how much momentum and force he translate in to whole vehicle with man hit you need to count tension belts cushion etc ,or other word they translate its own weight in diffrent period of time more or less;) .
oh yea i do misteake probably momentum and impulse shpuld be biger like you write but force be diffrent due to diffrent in time movement so smaller force due to longer period of time when move be end be man but yea momentum and impulse is probabaly create be whole man and vehicle both .
so yea yea offcorse moemntum and impulse is results of weight car and man inside but because man deceleration slower force is lower if both be deceleratio in egzacly the same time so if he be permanently atatched to car ;) .
and that just average force .
Thanks sir ❤❤
Thank you Sir ! 😉
Jonathan kicks a .45 kg soccer ball with a force of 12 N for .2 s.
What is the impulse on the soccer ball?
How fast was it moving after the .2 s if it started from rest?
Can anyone please help me with this problem
Super helpful
Very Helpul
Could you explain the impulsive torque and the meshing of two gears as an example ? 😞
very good
THANK YOUU!
When he got the impulse of the car he did Fxt= F=m x a which means 1301 x 10m/s^2 so why did he just leave the mass of the car untouched
sorry back again, idk if it's being explained differently or something but I've gotten all the questions wrong in class by following your theory. Not sure what to do
OMG..
Of course it is Very useful....