Question

2.
What is the cause of heat generation in the following situations,
(a) We apply brakes on our fast moving car.
Peonle often um un and down to feel warmer in cold weather,
(6)​

Answer 1

Answer:

a) in this situation heat is generate due to friction between road and tyres.

b) it happen due to exercise our body need more energy so we feel heat

Answer 2

We apply brakes on our fast moving car. peonle often um un and dowm to feel warmer in cold weather