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JEE Main 09 April 2016 Paper

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Question : 4

Total: 90

A car of weight W is on an inclined road that rises by 100 m over a distance of 1 km and applies a constant frictional force

on the car. While moving uphill on the road at a speed of 10ms−1, the car needs power P. If it needs power

while moving downhill at speed υ then value of υ is :

20ms−1
15ms−1
10ms−1
5ms−1

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