Solving Conservation of Mechanical Energy Problems

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Жыл бұрын

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.

Пікірлер: 20

@fizixx Жыл бұрын

Beautiful problem. It's so nice when everything fits together so nicely!

@user-sh3lp9xt5w Жыл бұрын

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

@lisandrolisandro8100 8 ай бұрын

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

@PhysicsNinja 8 ай бұрын

Glad it helped!

@shadowkxm 9 ай бұрын

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?

@arshchaudhary1986 Жыл бұрын

Thank sir it helps a lot

@Capesoda 9 ай бұрын

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

@sophiaumeh4523 3 ай бұрын

Thank you so much!

@PhysicsNinja 3 ай бұрын

You're welcome!

@ultimatekenz Жыл бұрын

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

@SatyajitMahapatra-ss3kp 5 ай бұрын

😢I'm also thinking that

@user-ff1sn3pg9f 4 ай бұрын

yeah that sucks, yeah not explain all the things clearly , he just gave us the results ... not explatin them at all

@rayocenda 16 күн бұрын

@@SatyajitMahapatra-ss3kpbecause at Hmax the y component of velocity is =0 , while the x component of V is always constant (that's an important characteristic of the projectile motion)

@vikashsinghyt2454 Жыл бұрын

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

@flyvandejacobs3337 8 ай бұрын

16/17/18

@viktor5534 2 ай бұрын

14/15/16

@athenaaminimd 5 ай бұрын

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

@petersikiaibaura3572 Жыл бұрын

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

@wiljamvandijk152 Жыл бұрын

If that were the case you would GAIN gravitational energy when you move down rather then lose gravitational energy which gets converted to kinetic energy