Question

A simple pendulum makes 75 oscillations in 15 seconds. Calculate the time period

and frequency. ​

Answer 1

Answer:

Note that the sine function x(t) = Asin(2πt/T) is periodic – it repeats itself whenever t increases by the amount T: x(t+T) = x(t). This is the precise definition of “period”. The period formula, T = 2π√m/k, gives the exact relation between the oscillation time T and the system parameter ratio m/k.

Answer 2

Answer:

For 15 oscillation it takes 30 sec

For one oscillation Tme period = 30/15 = 2sec

Frequency = 1/ Time period

=1/2=0.5 Hz