Question

What is the cause of heat generation in the following situations:
(a) We apply brakes on our fast moving car.
(b) People often jump up and down to feel warmer in cold weather.
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Answer 1

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• When we apply brakes on fast moving car, the friction is created between the tyres and road this heavy friction wears out the tyre and generate heat.

• While during jumping our blood flow gets fast, hearts getting beating up fast and this cause generation of heat.

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