An oscillating body (Pendulum)

Makes 1 amplitude in 0.02 seconds

What is its frequency?

Guest May 10, 2019

#1**+3 **

Not clear (to me!) exactly what you mean. Do you mean one *period* is 0.02s, or the time between the mid-line and the maximum (or minimum) is 0.02s, in which case the period would be 4*0.02s or 0.08s (or do you mean something else?)? Either way the frequency is given by frequency = 2pi/period.

Alan May 10, 2019

#2**0 **

Sorry..

The periodic time is 0.08 second. (I found it by 4*0.02 as you did)

Frequency = 1/periodic time

1/0.08 = 12.5HZ Is that correct ??

To clear:

1 Amplitude = 1/4 periodic time = 1/4 complete oscillation

so 4 amplitudes = periodic time of 1 complete oscillation

Guest May 10, 2019

edited by
Guest
May 10, 2019