Physics (AS & A Level) · Oct / Nov 2025 · Paper 12 · Question 14

The diagram shows a uniform bar of mass M and length L resting on a pivot at a distance x from end X. An object of mass m is placed on the bar at distance y from the pivot so that the bar is in equilibrium. What is an expression for y?

1. A\frac{xM}{m}
2. B\frac{M}{m}(L - x)
3. C\frac{M}{2m}(L - 2x)
4. D\frac{1}{m}(Lm - xM)

As printed in the paper