A car of weight W is on an inclined road that rises by 100m over a distance if 1 k and applies a constant frictional force (W)/(20)on the car. While moving uphill on the road at a speed of 10 ms^(-1), the car needs power P. If it needs power (P)/(2) while moving downhill at speed v then value of v is

A car of weight W is on an inclined road that rises by 100m over a dis

1.	A car of weight W is on an inclined road that rises by 100m over a distance if 1 k and applies a constant frictional force (W)/(20)on the car. While moving uphill on the road at a speed of 10 ms^(-1), the car needs power P. If it needs power (P)/(2) while moving downhill at speed v then value of v is
Answer» `20 ms^(-1)` `5 ms^(-1)` `15 ms^(-1)` `10 ms^(-1)` ANSWER :C