Breaking down forces for free body diagrams | AP Physics 1 | Khan Academy
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- Опубликовано: 25 мар 2018
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Sal explains how to draw free body diagrams when forces are applied at an angle. How to find horizontal and vertical components of an angled force using trigonometry.
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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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Thank you for making this concept easily understandable! These always confused me in physics class!
Well, did you graduate?
If you are confused about why the force of 20N was split into 10 square roots of 3 and 10N has a greater sum of the original force it is important to remember that force is not the same as energy. It is important to remember that force is not the same as total energy. Force is the amount of acceleration an object went multiplied by the mass of the object. Think of running through a square-shaped field that is 10 meters wide and 10 meters tall and you traveled from one corner to another. If you went all the way across the field, 10 meters right, and then all the way up 10 meters, you would have traveled 20 meters in total. But if you were to go across said field in a straight line from corner to corner you would have only traveled around 14 meters in total but you would have still got to the same destination but you still would have traveled 10 meters to the right and 10 meter up.
In summary force(Newtons) is a vector unit, not energy used.
how is energy coming here
you mean direction
The introdaction takes me back a good old days😢
Excellent video. Thank you for explaining the concepts.
Awesome. Your explanatory reminded me of dead poets society Robin W's approach to teaching .
Thank you!
Thank you so much!
Thx for the help
This is very helpful.
Thanks
What always bothers me is the Force Normal. The table is applying that force, its not on the crate. If it was on the crate, a simple 1 Newton force would send the crate flying upwards, but it really requires an 11 Newton force upwards. Well if I combined all the forces upwards I would get 21, which isn't right.
Correction please:- force on horizontal box should replaced by cos to sin, and sin to cos
No correction it is correct the horizontal component is cos and vertical component is sin
3.8 million sub and 75 views dam
Issac Playz games yeah I meant subs
still only has 1K views tho xd
Now has 33k views
Is khan academy is indian channel???
nah...its a bangladeshi channel....salman khan is a bangladeshi guy who started khan academy