JEE Main 09 April 2016 Paper

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

W

20

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

P

2

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