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Two identical masses of 5 kg each fall o...

Two identical masses of `5` kg each fall on a wheel from a height of `10` m . The wheel disturbs a mass of `2` kg water, the rise in temperature of water will be :-

A

`2.6^(@)C`

B

`1.2^(@)C`

C

`0.32^(@)C`

D

`0.12^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
D
Entire `KE` gets converted into heat.
`DeltaKE = ms Deltatheta implies 10xx10xx10 = 2xx4200 xxDeltatheta`
`implies Deltatheta = 0.12^(@)C`
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