Hey Im a little concerned! At the very end of the lesson you're supposed to divide the net force which is 5 by the mass which is 3.45. So in my calculator I typed 5/3.45 and got 1.45 m/s^2
Yes. Ouch. I don't know where the 3.20 m/s/s came from? Thats a mistake 😕. The 5.0 N and 3.45 kg are correct but the final calculation of acceleration is incorrect. Thanks for the heads up.
@@PhysicsclassroomVideos Thank you so much! I'm helping my husband study for a test and needed a refresher on some physics concepts. Your video was very helpful!
I love your video it's straight to the point but I don't understand something In 2:34 you introduced an axis y and x, which I get. I also know that sinα is for y and cosα is for x. When solving for y related forces we normally do Wsinα to get Fnorm but here and in the Mechanics textbook they do Fnorm=Wcosα, and Fii=Wsinα why?
Nope. I've done it identical to your book. Eqns are at 3:40. Sine is for parallel or x and cosine is for perpendicular or y and generally = to Fnorm. Explanation as to why is given seconds earlier.
Because the angle Theta is between the weight vector and the y axis. For most other situations the angle Theta is between the vector to be resolved and the x axis.
Hello, When I go to concept builder and try to solve inclined plain problems, there are six places to fill, whereas there are five forces(four in case of no tensile, and 3 in case of no friction), which implies that we will also do the components of gravity, but we can not add the parallel component..so kinda confused.
the king of clear explanations! thank you
Thanks for your kind words.
Thank you very much! I have an exam tomorrow and it really helped me out in understanding all the variables involved!
Hey Im a little concerned! At the very end of the lesson you're supposed to divide the net force which is 5 by the mass which is 3.45. So in my calculator I typed 5/3.45 and got 1.45 m/s^2
Yes. Ouch. I don't know where the 3.20 m/s/s came from? Thats a mistake 😕. The 5.0 N and 3.45 kg are correct but the final calculation of acceleration is incorrect. Thanks for the heads up.
@@PhysicsclassroomVideos Thank you so much! I'm helping my husband study for a test and needed a refresher on some physics concepts. Your video was very helpful!
Explanatory, easy to understand and detailed thanks
Glad it was helpful!
thank you.
I love your video it's straight to the point but I don't understand something
In 2:34 you introduced an axis y and x, which I get. I also know that sinα is for y and cosα is for x.
When solving for y related forces we normally do Wsinα to get Fnorm but here and in the Mechanics textbook they do Fnorm=Wcosα, and Fii=Wsinα why?
Nope. I've done it identical to your book. Eqns are at 3:40. Sine is for parallel or x and cosine is for perpendicular or y and generally = to Fnorm. Explanation as to why is given seconds earlier.
@@PhysicsclassroomVideos yes that's my question
In physics sin is used for the y axis and cos for x axis but here is flipped why, even in textbooks?
Because the angle Theta is between the weight vector and the y axis. For most other situations the angle Theta is between the vector to be resolved and the x axis.
You helped me so much Thankyou!!!
Happy to help!
Great tutorial
Thank you very much!
Super clear, thank you!
Really helpful and clear explanations -thank you very much!
Thank YOU!!!!!
You're welcome.
Hello, When I go to concept builder and try to solve inclined plain problems, there are six places to fill, whereas there are five forces(four in case of no tensile, and 3 in case of no friction), which implies that we will also do the components of gravity, but we can not add the parallel component..so kinda confused.
sooo nice. thanks a lot!!!
Your welcome.
amazing thankyou
Welcome 😊
Sir Please tell me how to work out friction Is there a formula to do this. Thank You
Addressed beginning on Slide 7.
U nailed it
u rule!
you are awsome
Oop there goes gravity
you look like my spanish teacher but uncuban-ified