Physics (AS & A Level) · Oct / Nov 2016 · Paper 12 · Question 15

A minimum torque of 20 N m must be applied to the lid of a jar for it to open. The radius of the lid is 4.0 cm. What is the minimum force F that must act on each side of the lid in order to open it?

1. A2.5 N
2. B5.0 N
3. C250 N
4. D500 N

As printed in the paper