Question

A simple pendulum having a bob mass m has a period t. if you double m but change nothing else, the period would be which of the following

A. 2T B. T√2
C. T D. T/√2 E. T/2

Answer 1

Answer: D. T/√2

Explanation: Sample problem:

m = 1.5kg

k = 1.8*10^2 N/m

formula: T = 2(pi)(√m/k)

Double mass and your time would be 0.81s.

Divide 0.81s by √2 to get 0.57s✅

The original answer for the formula as 2(pi)(√1.5kg/1.8*10^2 N/m) = 0.57s✅