The amplitude of the motion of a body performing simple harmonic motion decreases with time because
-
friction force dissipate the energy of motion
- the frequency of oscillation varies with time
- the period of oscillation varies with time
- energy is supplied by some external agency
The correct answer is: A
Explanation
The amplitude of the motion of a body performing simple harmonic motion (SHM) decreases over time primarily due to energy loss, often caused by friction or other resistive forces. Therefore OPTION A is correct.