A 50.0 g stone is attached to the bottom of a vertical spring and set vibrating. If

Question:

A 50.0 g stone is attached to the bottom of a vertical spring and set vibrating. If the maximum speed of the stone is 15.0 cm/s and the period is 0.500 s, find the
(a) Spring constant of the spring,
(b) Amplitude of the motion, and
(c) Frequency of oscillation.