Question

Suppose a pendulum is L meters long. The time,t,in seconds that it tales to swing back and forth once is given by t=2.01

Answer 1

7.236 seconds

Explanation:

It is given that a pendulum is L meters long. The time,t,in seconds that it tales to swing back and forth once is given by

`t=2.01√(L)`

We need to find the time taken by pendulum to swing back and forth once if the length of the pendulum is 12.96 meters.

Substitute L=12.96 in the given equation.

`t=2.01√(12.96)`

`t=2.01(3.6)`

`t=7.236`

Therefore, the time taken by pendulum to swing back and forth once is 7.236 seconds.