A car weighing 500 kg moving against a resistance of 500 N, accelerates from rest to `20 m//s` in 100m `(g = 10m//s^2).` The work done by the engine of the car is :

A 810 kg car accelerates from rest to 27 m/s in a distance of 120 m. What is the magnitude of the average net force acting on the car ?

A car of mass 1000 kg accelerates uniformly from rest to a velocity of 15 m/s in 5 sec. The average power of the engine during this period in watts is :

A car of weight 20000 N drives up a hill at a steady speed of 8 m/s, gaining a height of 120 m in 100 s. Calculate (i) the work done by the car and (ii) the power of the engine of the car.

A 400kg car attains a speed of 50m/s from rest in 20s. The power developed in the engine will be

A car of weight 20000 N climbs up a hill at a steady speed of 8 m/s, gaining a height of 120 m in 100 s. Calculate : (a) work done by the car. (b) power of engine of car.

A motor car weighing 500 kg is moving with a speed of 15 m/s and the speed reduces to 5 m/s after brakes are applied. Calculate the value of retarding force after brake is applied ?