Question

A machine part is undergoing SHM with a frequency of 3.20 Hz and amplitude 1.80 cm. How long does it take the part to gofrom x=0 to x= -1.80 cm?

Answer 1

Answer:

0.23 s.

Explanation:

Let’s investigate the given positions.

We are asked to find the time it takes from x = 0 to x = -A. The part goes in the +x direction, so it will first go +A, then it turns back and goes to -A. The time it takes for this trajectory is 3T/4, where T is the period.

T = 1/f = 0.3125.

So the time it takes from x = 0 to x = -A is 0.23 s.