(a)[3]
Calculate the pressure applied by the post to the ground.
(b)[2]
Explain the effect of this on the pressure applied by the post to the ground.
Physics 0625 · IGCSE · Pressure
Pressure — practice question
A tractor's front bucket is used to force fence posts into the ground, as illustrated in Fig. 5.1. Each post touches the ground over an area of 100 cm$^2$. When the bucket pushes on a post, the post exerts a downward force of 6500 N on the ground.