AP Physics I - Unit 2: Dynamics - MCQ Review

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This video is a review of Free-Response Questions for AP Physics I, Unit 2: Dynamics. If you enjoyed this video, please like and subscribe! This video was by Vikas Sarvasya.

Here is a link to the powerpoint with all of the questions and answers:

Here is a link to the teacher's website with the handouts for all of the units and more practice questions:

There will be more videos with two for every unit covering MCQs and FRQs.

I hope you enjoyed this video and found it informative. See you next time!
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If you struggle with a specific topic or question, please feel free to post that in the comments below for solutions and clarifications. If you enjoyed this video or learned something from it, please like and subscribe! Thank you for watching!

studentlearningcenter
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Why is the coefficient of friction multiplied by a number that is not the force of gravity to find the force of friction? I know that you are supposed to multiply by the normal force, but I thought they were equal when the ground was flat.

annachen
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I’m confused about how static friction works. Isn’t it the coefficient of friction times the normal force? So wouldn’t the object slide backwards if that was the only force or if it was greater than the forward force? I know that it doesn’t actually slide, but why not?

seanedwards
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In some of the force diagrams, why are the normal and gravitational forces stemming from the center, but the frictional force is on one of the edges of the object. Since the object is represented as a point, shouldn't they all start from the same place?

jackhill