An athlete mass `60 kg` skips at the rete of `20` steps per minute through an aberage height of `25 cm` . The power devolepment is:

An athlete of mass 60 kg skips at the rate of 20 steps per minute through an average height of 25 cm. The power developed is

A pump lifts 20 kg of water in one minute to a vertical height of 30m.Find the power of the pump.

A pump lifts 5000kg of water per minute through a height of 12m. Find the power of the engine if 30 % of energy is wasted.

A boy of mass 50 kg runs up to a stair case of 45 steps in 9 s. If the height of a 15 cm, find his power.

A man weighing 60 kg climbs up a staircase carrying a 20 kg load on his head. The staircase has 20 steps and each step has a height of 20 cm . If he takes 10 sec to climb his power will be _________ (g = 9.8 "ms"^(-2))

A man weighing 60 kg climbs a staircase carrying a 20 kg load on his hand. The staircase has 20 steps and each step has a height of 20 cm. If he takes 20 second to climb, his power is :

Seema takes 1 minute to carry a bag weighing 20 kg to a height of 12 m. How much power has she used?

A man weighing 50 kg, climbs up a staircase carrying a bag of 10 kg on bis head. The staircase has 15 steps and each steps has a height of 20 cm. What is the power required by the man, if he takes 10 seconds to climb the staircase?