The diagram below shows a simplified view of the hydraulic brake system of a car. Only one
wheel and one brake cylinder is shown for
clarity. The brake pedal is pivoted at the top
and acts as a lever. When a force is applied to
the pedal as shown, the piston in the master
cylinder is pressed inwards.
The pressure
exerted on the oil in the system forces the
piston in the brake cylinder to move inwards.
This action causes the brake pad to press
against the wheel disc which in turn slows down
the car.

i. A force F of 20 N is applied to the brake pedal. Use moments to calculate the force
that this produces on the piston in the master cylinder.

(I am unsure if i should use both distances or only one, if anyone had any ideas thanks)

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