Question

A child in a swing oscillates with a certain frequency of oscillation (the child is sitting still). Another child sits next to the first child. How does the swing’s frequency of oscillation change when the second child sits next to the first child?

a. More information is needed.
b. It stays the same.
c. It decreases.
d. It increases.

Answer 1

C

Explanation: period T = 2π√(m/k)

Where m is mass

If mass increases period will increase

And frequency = 1/T

Therefore the frequency decreases