Types of forces and free body diagrams | AP Physics 1 | Khan Academy

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Sal defines and compares tension, weight, friction and normal forces using free body diagrams.

AP Physics 1 on Khan Academy: Meet one of our writers for AP¨_ Physics, Sean. A physics teacher for seven years, Sean has taught AP¨_ Physics 1, AP¨_ Physics C, and Conceptual Physics. HeÕs also a former mechanical engineer. Sean is based in Boise, Idaho, and is a Khan Academy physics fellow, creating awesome new exercises and articles for AP¨_ Physics.

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Can u make a video about Newton's laws and how calculate it's resultant and all that please

jordan_k
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This is a very interesting topic and I enjoyed this! I’m in 7th grade also so it made this cool to learn

torgalski
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U r the best....lots of love from INDIA

dilipchavan
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Thank you so much! You explained very clearly!

tangcherry
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would the tension in 1 & 2 be 15 [n] distributed equally on both T1 and T2

BrandonAmaro
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What about the forces acting on the surface of a table (say )with a block on it
*normal reaction in downward direction (due to electrostatic interactions)
*But why not the force of weight of the block?

tanmayking
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What software are you using for the whiteboard (or blackboard) effect?

toddrathier
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Oh noo! I needed this video to be way longer.

jenngzz
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But where on the object does the normalforce act? Since its in equillibrium the sum of moments, for example at the center of mass, must be zero

Hobbit
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Because I think that most of ur viewer in an indian

studysimple
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Sir upload video on kinematics (full lecture). And please sir try to speak in hindi. Explain clearly okh

studysimple