Question

(a) Derive an expression for the energy of an object of mass m that has

beenraised to height h from the ground.

(b) A shot put player throws a shot put of mass 3 kg. If it crosses the top of the wall of 2

m height at a speed of 4 ms-1

.Compute the total mechanical energy gained by the shot

put when it crosses the wall. (Take, g=9.8ms-2
) ​

Answer 1

Answer:

The energy possessed by an object due to its motion is called as kinetic energy. Derivation: Let us consider an object of mass "m" which is ..