Newton's 2nd Law (8 of 21) Calculate Acceleration w/o Friction; Inclined Plane, One Mass
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- เผยแพร่เมื่อ 20 ก.ย. 2014
- Shows you how to calculate the acceleration of a mass as it slides down a frictionless inclined plane. The acceleration of an object is directly proportional to the net force applied to the object and inversely proportional to the mass of the object. The second law can also be stated in terms of an object's changing momentum, such that the rate of change of momentum of an object is directly proportional to the net force applied and the change in momentum is in the direction of the net force.
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This helped me immensely, my Physics teacher tends to overexplain and I tend to overthink, this is simple enough for me to retain it!
oh my god, this is way helpful explaining step by step. i honestly took me this to understand less than 5 minutes than it took to understand my teacher or other. God pleas you
Thanks for the great comment.
“I’m on earth. Hopefully you’re on earth.” i don’t know but i laughed so hard on this statement. anyway, your videos helped me a lot. thank you!
Glad to be helpful. Thanks for watching!
OMG, Thank you so much, I've spent two weeks trying to work this out for my physics assignment and you explained it so well in less than 10 minutes. What a legend!!
You're very welcome!
I remember this from my A Level maths back in 1980 I worked it out then played the video. Used it a lot in circular motion of mass on a string: mv^2/R = T-mgCos(theta) where R is radius, T is tension. Loved Applied Maths
Great and thanks for the comment.
This video made my day. Had struggled with a specific task regarding this and couldn't find any straight forward explanations, like this, in my book. Thank you so much :))
Thanks for the great comment.
Great video man!
I was doing a physics problem involving forces transferring through gears and needed to determine the best gear configuration in a inclined plane scenario. I had forgot how to calculate the resulting acceleration, so I came to your video! I didn't need that info to solve it, but I wanted to calculate just for the pleasure of it hahahah. It was really helpful. Keep up the great work!
Thank you very much, you can see a listing of all my videos at www.stepbystepscience.com
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Beautifully explained! Thank you.
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Happy to hear that, thanks so much!
Thank you SO much, you have no idea how MUCH I needed this help! When I clicked on the video I thought you were going to go straight forward into the math, but no, you explained everything so clearly and I can actually answer the question on my homework now. (The only thing diffrent with my question to this one in the video is that the triangle had a 20 degree angle). I had no idea how to do this before this video thank you thank you thank you thannnnkkk youuuuuuuu
You are so welcome. Glad to be of help.
Fantastic video. I've watched others over 30 minutes, overcomplicating things. Great job and thanks very much
My pleasure, thanks for the nice comment.
Thank you so much sir, it helped me in understanding Applied Mathematics complicated aspects and made it easier now
Nice, You are very welcome, thanks for commenting.
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this was perfect. doing a homework assignment our teacher never taught us how to do and now i actually understand it!
That's wonderful. Glad it was helpful!
Dude, Thank youu sooooo much.
It was very helpful
Very nice of you to say so, thanks for watching and commenting.
Thank you for clearly explaining a topic I have been stuck on for days because my physics teacher keeps contradicting himself
That can be frustrating, thanks for the comment.
Ah, literally splitting gravity into its vectors, seems obvious now that you've stated it, yet I still didn't think of it myself. thanks for the video
Glad it was helpful!
This was on my midterm today. We weren't given the mass, and I guessed to use Sine. You made this super clear!!! I won't have to guess next time.
I'm so glad it helped! Thanks for the positive comment.
30 years ago, I failed test on this very specific exercise. I did not fully understand this lesson. 30 years later, I wanted to review this lesson and NOW and because of YOU I do understand it. Thanks from my heart Sir.
Excellent! and thanks for letting me know
Good explanation
This was very helpful to my studies, thanks for the help.
Glad it was helpful! Thanks for the nice comment.
You explain better than my teacher! I now get the concept thanks to you sir!
+angelodetteful Glad that the video was helpful. You can see a listing of all my videos at my website, www.stepbystepscience.com
+Brian Swarthout Thanks! Tomorrow , we will start tackling projectile motion and circular motion. I know it's a tough topic. Do you have videos about these topics?
Very helpful, thank you so much!
You are very welcome
great and simple, exactly what I needed to hear
Great to hear, thanks for the comment.
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Wow was looking for something like this.... I truly understand... Now... I have exams coming up... This really helped me
Great, hope the exams go well.
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Great videos. Very similar to how I teach it. I use these videos as hw assignments
Thank you
Great, thank for letting me know and for the comment.
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Thanks for the great comment, very nice of you.
Great teacher u r...appreciated
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Great, thanks for the positive comment.
Thanks man, every bit like this helps a bunch!
Very grateful to live in a world where we get videos like this almost any time. Don't know how anyone passed Physics without it! Lol
Thanks for watching and commenting
Thank very much.🇿🇦
How do we calculate the mass?
So when you write MG I use FG and I was just plugging in my force of gravity where you put MG and it worked until the end when you wrote out the equation of what AX = then you canceled out the M of the MG and I got lost I have this physics paper I’m doing last minute and I just can’t figure out the correct equations when using terms like Force of gravity or the forces of acceleration and applied forces it’s just becoming confusing
Here it is the big comment!! Thanks it helped me a lot , you made it look much easier to uderstand!!
+Margarida Simoes Thanks, I try to go through everything step by step. In fact….You can see a listing of all my videos at my website, www.stepbystepscience.com
Thanks! I will take a look
this video's educational quality is ∞%
Thanks for watching and commenting.
you're a legend!
Thank you, very nice of you to say!
Thank you!
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i honestly, sincerely, appreciate your clear explanation fo forward thank you very much
You are very welcome
So helpful. No mas
Hello Brian, when the problem did not specify in what direction the block is going to slide from an inclined plane, should I always assume that it would slide to the east direction?
If there is no friction then the mass will always slide down the inclined plane. If there is friction it will either slide down the inclined plane or if the friction force is greater then the force down the plane it will not move. I explain this concept in the following video th-cam.com/video/94-aVoyNSqY/w-d-xo.html
Your the best!!!
Thanks
Awesomeness
Rosario Zamilpa Thank you very much for the positive comment.
loved it
Thanks so much!
I am 13 and I understood in 2 minutes thanks a million
Way to go! You're welcome.
Thank you sir
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THank you very much for the very positive comment!
Thanks!
you are welcome
thanks so much! my professor did mg = mgsin (theta). why is that?
Without having been there I am not sure. but when you multiply mg times the sign of the angle then you get the x component of the weight (mg) of the object.
You can a listing of all my videos from my website, www.stepbystepscience.com
This man is goood 🙌
Thanks!
why did you do mgsinangle/ mass ?
Explains how my kid bounced two mowers out the front of a trailer today. Mass doesn't matter but the rate of the angle sure sent 280 lbs mower flying faster the truck pulling them. How, well he hit a pot hole and the trailer pitched up from the rear.
Hopefully nothing broke!
@@stepbystepscience One mower was totaled, but I'm happy no one got hurt. Mowers can be replaced. We will be buying a longer trailer soon to stop the friction less angle acceleration these mowers went through. I knew the mowers went faster then the truck, your video gave me the math needed to solve the how. 2 ft pothole X 4x8 trailer X 15mph x 12 to 19 degrees= two mowers @ 280lbs flying. I'm sure my math is wrong but seeing Newton's laws at work priceless.
this man is single handedly getting me a stem degree
Very nice of you to say, thanks and good luck with the degree.
I'd never thought that Vin Diesel would teach about Newton's laws.
Got to do something between each edition of the Fast and the Furious.
Lolz bro🤣
that funny cause I thought he sounded like Vince Vaughn from wedding crashers
what will be the effect if there is some initial velocity>?
v = a x t + v0, just basic mechanics
You can see a listing of all my videos at www.stepbystepscience.com
Why did you ignore fN? Is it because it just so happened to cancel out with fg? What if it didn’t?
It is not in the direction of motion.
Youre beyond the infinity :)
That is a lot, is it even possible? What is beyond infinity? You can see a listing of all my videos at my website, www.stepbystepscience.com
"Maybe you're on Earth." Pleased to inform you that you are also helping me and the other grays
Yes, I am in fact on Earth....great that you and the other grays find the video helpful.
Thank you. I don't need a mass
Question would fN be equal to mg?
F normal = mg cos (theta)
@@stepbystepscience oh okay that’s makes more sense!!
how do you know they are similar triangles?
Because I said so or something like that.....
if you have the line mg going straight through the two parallel lines you can prove they are similar through AAA since we know its a right angle triangle, and we can show that one other their other angles are equal through the properties of a line cutting through 2 parallel lines, the last angles must also be equal.
It's funny how some teacher online can teach better than my physics teacher at school where apparently the school thought it was ok for my idiotic teacher to teach AP Physics. It's pathetic. Thanks for the video; I might actually not fail that class now.
Sorry, hope it gets better and that you do well on the AP test.
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this is how i calculated it before but it asked for the magnitude of acceleration so I'm not understanding why its marking me wrong T^T
I do not exactly understand your question, but the magnitude is just the number without the positive or negative sign.
My answer is 1.5m/s2.. From (9.8)*(sin 19).. I think i m right
Ezaddin Harun Hmmmm….I think you are right too. Thanks for letting me know, I will put an annotation on the video.
+Brian Swarthout I think your calculator is in radian instead of in degrees mode
I figured out everything except what sin means in g sin degree
you made me realize how bad my teacher is
Sorry, but thanks for watching and commenting.
Step-by-Step Science I meant it as a good thing because you are such a good teacher :)
you are a fucking king
Did not get this guy's explanation at all.. guess that's my fault.. I'm not up in his doggerel. It might be step by step but an outline of the non standard jargon he uses would have helped. Helped me anyway. I'm sure an outline of What he is describing would have helped me. Instead he just..... Says things like "sum up all the forces" in "This" direction.... And then declares the "normal" direction. I beg your pardon but you might define normal for us.... And explain what it means...... As it is I'll get my dunce's hat and head off to the back of the class.
It is all standard jargon. This video explains what the normal force is:
th-cam.com/video/sepmBsnzpjI/w-d-xo.html
@@stepbystepscience it's okay, i looked at one of the videos by Sal Khan (had to laugh - he specifically acknowledges that some folk might have a bit of trouble remembering terms from he says.... thirty-five years ago.... Or whenever when they last looked at maths he defined the normal... I empathized with that, but in my case I gave up maths after my Highers (which if my maths is up to it was thirty-nine years ago.... Which is oh, what? Six or so years more than his example?!). Seriously though - thanks for taking the time to respond, much appreciated. AND If you ever need a music theory lesson with everything explained - give me a shout... i owe you one... Regards k
this did not help at all.
Why not?
i wish i could look u in the eye properly and tell u how much i love u
Did you subscribe?....but thanks so much for the great comment.
@@stepbystepscience i have done the subscription to the step-by-step science channel.