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Solution: When braking, brake pads apply a friction force on the wheel...

Question

When braking, brake pads apply a friction force on the wheels, which converts the kinetic energy of the car into heat, allowing the car to slow down. If a 2000 kg car is moving forward at 30 m/s. How much thermal energy must each brake be emitting per second if the car needs to stop within a distance of 100 m. Assume that the car has 4 sets of brakes, and that the braking force applied on the wheels is constant.