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A stone is dropped from the roof of a house towards the ground. The kinetic energy of the stone will be maximum:
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- just after it is dropped
- when it is just on the half-way
- just before it touches the ground
- when it touches the ground
- just after it is dropped
Correct Option: C
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.
