M Prep | MCAT 2015 Question of the Day - Prep, Practice Questions, and More!

Q:

A spring is suspended from the ceiling and a weight is attached to the bottom. The spring is displaced from equilibrium and released which results in a simple harmonic motion of the spring and mass system. During this motion, at zero displacement from equilibrium, which of the following values are non-zero with respect to the mass?

I. momentum
II. velocity
III. elastic force acting on the mass

A

II only

B

I and II only

C

II and III only

D

I and III only