Physics (AS & A Level) · May / June 2018 · Paper 12 · Question 17

The diagram shows a ball of weight W hanging in equilibrium from a string. The string is at an angle θ to the vertical. The tension in the string is T. The ball is held away from the wall by a horizontal force P from a metal rod. What is the relationship between the magnitudes of T, P and W?

1. AP = T cosθ and W = T sinθ
2. BT = P + W
3. CT² = P² + W²
4. DW = P tanθ and W = T cosθ

As printed in the paper