Question

What is the cause of heat generation in the following situation:
a: we apply brakes on our fast moving car.
b: people often jump up and down to feel warmer in cold weather

Answer 1

Hello!

Here is the answer for your question!

Question:- What is the cause of heat generation in the following situation:

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:-

• (a) The heat generated when we apply brakes in a fast moving car is due to Friction. The continued contact between the uneven surface of brakes and stopper create heat.

• (b) People jump up and down in cold weather to feel warmer because jumping up and down increases the bloodflow in our body and thus increases heat generated in our body

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Hope this cleared your doubt :)