CAPE Physics Unit 1 · 2007 · Paper 2 · Question 4(b)(ii)

Figure 5 depicts a uniform plank, weight 200 N, leaning against a smooth wall. The foot of the plank is 3 m from the wall and the top of the ladder is 6 m from the ground. Find a) The upward push, R, of the ground on the plank. b) The magnitude of the normal force, P, exerted by the wall on the top of the plank. c) The magnitude and direction of the resultant of R and F, the friction force at the ground.

This question uses a figure or table from the paper — you'll see it when you practise.