Answer to Question #87703 in Mechanics | Relativity for Raffaela

Question

When you step on the brakes, what happens to the energy of the car? How does it happen?

Answer 1

When breaking the car, the kinetic energy turns into a work of friction of tires on the ground.

Kinetic energy: $E=mV^2/2$

m - mass of car, V - velocity of car

Work of friction $A=FS$

F -breaking force, S - breaking distance

E=A