Solving Conservation of Mechanical Energy Problems

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Physics Ninja looks at a problem of a skier sliding down a slope. Conservation of mechanical energy is used to find the maximum height after taking a jump. We also consider the problem when there is friction slowing him down before the jump.
  1. Physics Ninja
  2. Physics
  3. Ninja
  4. Conservation
  5. Energy
  6. Work
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Комментарии
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Beautiful problem. It's so nice when everything fits together so nicely!

fizixx
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I did not study for my exams but watched this before and this video helped me so much. thank you

lisandrolisandro
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So clear and well-explained. Appreciate these videos so much; thank you!

shlpxtw
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how come when we're looking for Hmax we're using cosine? I would have thought to use sine and Vy instead

ultimatekenz
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now how in the heck do you do this problem in 3 mins on the exam for ap physics 1

Capesoda
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when we found v at the height 2.0m, how do we know the direction of v? how would we have known that the v is in line with the angle of the ramp? in future questions, what determines whether the v is a v_x or v_y or v of some ramp it's being launched? If the surface was flat, would v be in the x direction i presume?

shadowkxm
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I will try to solve this tomorrow and then I will watch It.

athenaaminimd
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For which standard do you guys, in your country or state study theese kind of problem age guess?

vikashsinghyt
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Sir, Why is the value of gravity is not equal to negative -9.8m/s^2?

petersikiaibaura