Question

A mass on a spring moving along the x-axis in simple harmonic motion starts from the equilibrium position, the origin, at t=0 and moves to the right (consider the right to be the positive x direction). The amplitude of its motion is 3.00cm and the frequency is 1.50Hz. At what earliest time does the mass have the maximum positive acceleration (i.e. pointing in the positive x direction)?

A. t=0.667 seconds

B. t=1.50 seconds

C. t=0.500 seconds

D. t=0.167 seconds

E. t=0.314 seconds

I need help in getting the answer (C). Thanks!

Answer 1