Physics (AS & A Level) · Oct / Nov 2022 · Paper 11 · Question 3

In an experiment to determine the acceleration of free fall g, the time t taken for a ball to fall through distance s is measured. The percentage uncertainty in the measurement of s is 2%. The percentage uncertainty in the measurement of t is 3%. The value of g is determined using the equation shown. g = 2s / t^2 What is the percentage uncertainty in the calculated value of g?

1. A1%
2. B5%
3. C8%
4. D11%

As printed in the paper