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 wa

Question

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 wa

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`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

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

4 views Answered 2023-02-05 15:29