A boy whose mass is 30 kg climbs, with a constant speed, a vertical rope of 6m long in 10 s. The power of the boy during the climb is : `(Take g=10ms^(-2))`

A crane lifts a mass of 100 kg to a height of 10m in 20s . The power of the crane is (Take g = 10 ms^(-2))

A boy of mass 40 kg climbs vertically upwards on a coconut tree to a height of 10m. Calculate the work done by the boy.

A boy of mass 40kg is climbing a vertical pole at a constant speed.If the coefficient of friction between his palms and the pole is 0.8 and g=10m/s^(2) ,the horizontal force that he is applying on the pole is?

A boy of mass 40 kg is climbing a vertical pole at a constant speed. If the coefficient of friction between his palms and the pole is 0.8 and g=10m//s^2 , the horizontal force that he is applying on the pole is

A boy of mass 40 kg climbs up a rope with an acceleration of 2 ms^(-2) . What is the tension in the rope ?

A boy of mass 40 kg climbs up a rope with an acceleration of 2 ms^(-2) . What is the tension in the rope ?