# A simple pendulum has length 20cm.it was displaced at an angle 15° and then released to execute simple harmonic motion. How much time is required for the pendulum to reach maximum speed?

##### 1 Answer

May 14, 2018

#### Explanation:

The time period of a pendulum of length

While this formula is valid only for small angles of oscillation, this works pretty well for an amplitude of

The object will reach its highest speed at the lowest point of its trajectory - and this will be at a time given by