a car's engine, producing a constant power, propels the car up a hill at a constant speed and down the hill at double the speed. if the coefficient of kinetic friction between the car and the road is 0.28, what is the angle of incline of the hill. assume the hill is symmetric.
The Attempt at a Solution
While going upwards, friction and weight component are acting downwards.
While going downwards, the frictional force reverses direction. but the velocity is double....So i am assuming that the downwards force is double.
equate the two expressions: