When a driver brakes an automobile, friction between the brake disks and the brake pads converts part of the car’s kinetic energy to internal energy. If a 1500 kg automobile traveling at 32 m/s comes to a halt after its brakes are applied, how much can the temperature rise in each of the four 3.5 kg steel brake disks? Assume the disks are made of iron (c = 448 J/kg•°C) and that all of the kinetic energy is distributed in equal parts to the internal energy of the brakes.
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When a driver brakes an automobile, friction between the brake disks and
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