A man weighing 49 kg carries a bag of 2 kg . He climbs to the top of a building 100 m tall in 5 minute . Calculate the work done by the man and the power he develops .

A man weighing 70 kg carries a 30 kg box to the top of a building 20 m high. Calculate the work done by the man (take g = 9.8 ms^(-2) ).

A man weighing 60 kg. lifts a body of 15 kg. to the top of a building 10 m high in 3barminutes. His efficiency is

A man weighing 70kg carries a weight of 10kg on the top of a tower 100 m high. Calculate the work done by the man. (g = 10m//s^2)

A man carrying a bag of total mass 25 kg climbs up to a height of 10 m in 50 seconds. Calculate the power delivered by him on the bag.

A box of 50 kg is lifted by a man of mass 60 kg to a height of 50 m. Calculate the work done by the man.

(a) Define power. Give the SI unit of power. A boy weighing 40 kg carries a box weighing 20 kg to the top of a building 15 m high in 25 seconds. Calculate the power. ( g = 10 m//s^(2) )

A man carrying a bag of total mass 25 kg climbs up to a height of 10 m in 50 seconds. Calculating the power delivered by him on the bag.

A man of weight 60 kg f is carrying a load of 20 kg of on his head . He moves a distance of 25 m up an incline of 1 in 12 . Calculate the work done by him .