Vehicle can be regard as energy conversion device, which transfers the momentum into heat, in other
words, which transfers the kinetic energy into thermal energy. The brakes are used to reduce the
speed of the vehicle, and the speed of conversion determines the rate of the vehicle slows down. When
we apply the brake pedals or handbrakes, the cars transmit the force from our feet or hands to the
brakes.
- Teacher: Jean Pierre NSABIMANA