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

  • (A) Just after it is dropped
  • (B) When it is just on the half-way
  • (C) Just before it touches the ground
  • (D) When it touches the ground
  • Correct Answer - Option(C)
  • Views: 15
  • Filed under category Physics
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Explanation by: Admin

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.

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