The position of a mass oscillating on a spring is given by
X= 7.8 cm cos [2 pi t / (0.68 s) ]
a. What is the frequency of this motion?
b. When is the mass first at the position x= -7.8cm© BrainMass Inc. brainmass.com February 24, 2021, 2:17 pm ad1c9bdddf
a) angular velocity = w =2pi /T= 2pi /0.68
Therefore T=0.68 ...
The expert calculates frequency of oscillatory motion and the time when the mass is first at the position x= -7.8cm.