Question

Why does the brake drum of an automobile get heated up while moving down at constant speed?​

Answer 1

now after applying brake, a frictional force act between automobile and surface, due to this kinetic energy is converted into heat energy. that's why the brake drum of an automobile get heated up while moving down at constant speed..

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Answer 2

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After applying brake, a frictional force act between automobile and surface, due to this kinetic energy is converted into heat energy. that's why the brake drum of an automobile get heated up while moving down at constant speed.