Question

Liquid exerts pressure in all directions
this is used in car break mechanism
explain

Answer 1

t takes a large force to slow down or to stop a car that is travelling at speed. Hydraulics are used in the braking system of a car. They cause a relatively small force from the driver’s foot to be multiplied to produce a greater force, which acts equally on all four brake pads.

The force from the driver’s foot (the effort force) exerts pressure on the brake fluid in a small piston. The pressure is transmitted throughout the brake fluid in all directions.

Next to each brake disc, there is a much larger piston with a greater cross-sectional area. The transmitted pressure acts on this larger area to produce a larger load force on the brake pads. The pads then rub against the brake discs and cause the car to slow down.