A child sits on a swing supported by ropes of length 3 m.With what frequency will she need to apply the driving force to maintain swinging?

Question

Quizplus · Accepted Answer

The frequency of a pendulum is given by f = 1/2π√(L/g), where L is the length of the pendulum and g is the acceleration due to gravity. In this case, L = 3 m and g = 9.8 m/s^2, so f = 1/2π√(3 m / 9.8 m/s^2) = 0.29 Hz.

A Child Sits on a Swing Supported by Ropes of Length