Question

A body of mass 5 kg falls from a height of 20 metres on the ground and it rebounds to a height of 0.2 m. If the loss in potential energy is used up by the body, then what will be the temperature rise? (specific heat of material = 0.09 cal gm⁻¹ °C⁻¹)(a) 0°C(b) 4°C(c) 8°C(d) None of these

Answer 1

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Answer 2

Answer:

Explanation: difference in height is 19.8m

So change in potential energy is energy supplied to body

Then mg(19.8)=m*(specific heat )*ΔT

Go ahead find ΔT that's the change in temperature

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