A boy weighing 50kg eats bananas. The energy constant of banan is 100cal , if this energy is used to lift the body from ground, then the height through which his lifted is

A boy weighing 50kg eats bananas. The energy constant of banana is 100cal , if this energy is used to lift the body from ground, then the height through which it is lifted is

A boy weighing 42 kg eats bananas whose energy is 980 calories. If this energy is used to go to height h fing the value of h.

A girl weighing 42 kg eats bananas whose energy is 980 calories. If this energy is used to height h find the value of h. (J=4.2J calorie)

A work of 4900 J is done on a load of mass 50 kg to lift it to a certain height. What is the height through which the load is lifted ?

An inclined plane of length 2 m is used to lift a load of 100 kg_(wt) . The force required to lift the load is 20 kg_(wt) . The height through which the load is lifted is ______ m

IF have energy of a 100 mu F capacitor charge to 6kV could all be used to lift a 50 kg mass, then the greatest vertical height through which mass could be raised in…… m