Question

The displacement of an object in SHM is given by y(t) = (7.1 cm)sin[(1.64 rad/s)t]. What is the frequency of the oscillations in Hz?

I'm completely stuck here. I was thinking that frequency = 1/t. I'm stuck with the information given. Please help!

Answer 1

The 1.64 rad/s number in front of "t" is the ANGULAR frequency, w. The frequency in cycles per second (Hz) is w/(2 pi), or 0.261 Hz.

Answer 2

Thank you so much! I wasn't understanding the format.