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Two spheres of same size , one of mass 2...

Two spheres of same size , one of mass `2 kg` and another of mass `4kg` are dropped simultaneously from the top of a `72m` high tower. When they are `1m` above the ground, the two spheres have the same:

A

1) momentum

B

2) kinetic energy

C

3) potential energy

D

4) acceleration

Text Solution

Verified by Experts

The correct Answer is:
B
When two spheres are dropped from rest , force of attraction due to earth acts on it . Under the force of attraction they will acquire the same acceleration they will acquire the same acceleration which is due to gravitational effect .
Also, g `=(GM)/(R^(2)`
In which acceleration due to gravity is independent of mass of the body .
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