Q. A stone is dropped from the roof of a house towards the ground. The kinetic energy of the stone will be maximum:
✅ Correct Answer: (C)
Just before it touches the ground
Explanation: 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.
Explanation by: Team MCQ Buddy
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.