A mass on a spring vibrates in simple harmonic motion at a frequency of 4.0 Hz and an amplitude of 4.0 cm.If a timer is started when its displacement is a maximum (hence x = 4 cm when t = 0),what is the speed of the mass when t = 5 s?
A) zero
B) 0.0065 m/s
C) 0.016 m/s
D) 0.024 m/s

Question

Quizplus · Accepted Answer

The speed of the mass is zero when the displacement is at a maximum, which occurs at t = 5 s since the period is 0.25 s and 5 s is an integer multiple of the period.

A Mass on a Spring Vibrates in Simple Harmonic Motion