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M2 Energy, Work and Power

Hello,

I'm stuck on this question and I would appreciate any help.

With its engine working at a constant rate of 9800 W, a car of mass 800kg can move down a slope at twice the speed it can attain when moving up that slope.
The slope is inclined at an angle of θ\theta to the horizontal, where sinθ=156 sin\theta = \frac{1}{56} .

Assuming a constant resistance throughout, find the magnitude of the resistance.

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(edited 11 years ago)
I agree with 420N.
Original post by ghostwalker
I agree with 420N.


Yay! I'm so happy. I couldn't think what I had done wrong.
Thank you so much once again for your help ghostwalker!! You're so kind. :biggrin:
I will rep you once it allows me to do so.
Original post by xsweetcherrypiex
Thank you so much once again for your help ghostwalker!! You're so kind. :biggrin:


You're welcome :blush:
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Avatar for Jxmai
Jxmai
how do you know the answer is 1260N
Original post by Jxmai
how do you know the answer is 1260N


You clearly haven't read the thread.

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