1.

A stone is dropped from the roof of a house towards the ground. The kinetic energy of the stone will be maximum:

Answer»

 Just before it TOUCHES the GROUND



When an object reaches the ground it has its maximum value of kinetic energy just before touching the ground. Since kinetic energy + POTENTIAL energy= CONSTANT; so on REACHING ground the potential energy of an object becomes zero (0). The kinetic energy on reaching ground becomes maximum.



Discussion

No Comment Found