A mass is suspended vertically from a spring so it is at rest at the equilibrium position.The mass is pulled straight down to an extension x and released so that it oscillates about the equilibrium position.The speed of the mass is greatest when the mass is
A) at its maximum upward travel.
B) at the equilibrium point.
C) at its maximum lower travel.
D) somewhere between the equilibrium point and maximum extension.

Question

Quizplus · Accepted Answer

The speed of the mass is greatest at the equilibrium point because all the potential energy stored in the spring is converted to kinetic energy at this point, resulting in maximum speed.

A Mass Is Suspended Vertically from a Spring So It