(a)[2]
Define what is meant by the term moment.
(b)[2]
Calculate the force $F$ acting on the brake pedal.
(c)[2]
The piston has a cross-sectional area of $0.0012\,\text{m}^2$. Calculate the pressure applied by the brake piston to the fluid.
Physics 5054 · O Level · Turning effect of forces
Turning effect of forces — practice question
Fig. 3.1 shows a car brake pedal linked to a brake cylinder.
A force $F$ is applied to the brake, and this creates a moment around the pivot.
When the brake is pressed, a force of 80 N acts on the piston.