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 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 crane pulls up a car of mass 500kg to a vertical height of 4m. Calculate the work done by the crane.

A crane pulls up a car of mass 500 kg to a vertical height of 4 m. Calculate the work done by the crane.

A boy weighing 50 kg climbs up a vertical height of 100 m. Calculate the amount of work done by him. How much potential energy does he gain ? ( g = 9.8 m//s^(2) ).

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 car of mass m 1600 kg, while moving on any road, experience resistance to its motion given by (m+nV^(2)) newton, where m and n are positive constants. On a horizontal road the car moved at a constant speed of 40 m/s when the engine developed a power of 53 KW. When the engine developed an output of 2 KW the car was able to travel on a horizontal road at a constant speed of 10 m/s. (a) Find the power that the engine must deliver for the car to travel at a constant speed of 40 m/s on a horizontal road. (b) The car is able to climb a hill at a constant speed of 40 m/s with its engine working at a constant rate of 69 KW. Calculate the inclination of the hill (in degree)

A car travels with a speed of 25 m//s for 2 minutes and then with 20 m//s for 1 minute.Calculate the total distance travelled by the car.

A car is moving with a speed of 30 m/s. Find the distance covered by the car in 2s

A load of 100 kg is pulled up by 5 m. Calculate the work done. ( g = 9.8 m//s^(2) )

A car weighing 500 kg climbs up a hill of slope 1 in 49 with a velocity of 36 KMPH. If the frictional force is 50 N, the power delivered by the engine is