A mass on a spring undergoes SHM. When the mass is at its maximum displacement from equilibrium, its instantaneous velocity
A) is maximum.
B) is less than maximum, but not zero.
C) is zero.
D) cannot be determined without mass information given.
E) cannot be determined without spring constant information given.

Question

Quizplus · Accepted Answer

At maximum displacement, the mass momentarily stops and changes direction, meaning the velocity is zero at this point. This occurs at the point of equilibrium, where the force acting on the mass is zero. Since the force is proportional to displacement, the velocity is also zero at this point.

A Mass on a Spring Undergoes SHM