The effectiveness of the brake of a car does not depend on the area of contact of the brakeshoewith the rim of the wheel - explain.

The effectiveness of the brake of a car does not depend on the area of

1.	The effectiveness of the brake of a car does not depend on the area of contact of the brakeshoewith the rim of the wheel - explain.
Answer» Solution :A car brake is applied to generate a frictional FORCE against the rolling of thewheel and thereby to decrease the VELOCITY of the car. Frictional force does not depends on the nature of the surfaces in contact and the normal REACTION. The area of contact of the brake has no effect on its functioning.