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A copper block of mass 1 kg slides down ...

A copper block of mass 1 kg slides down on a rough inclined plane of inclination `37^(@)` at a constant speed. Find the increase in the temperature of the block as it slides down through 60 cm assuming that the loss in mechanical energy goes into the copper block as thermal energy. (Specific heat of copper`=420 J kg^(-1) K^(-1), g=10ms^(-2)`)

A

`6.6xx10^(-3).^(@)C`

B

`7.6xx10^(-3).^(@)C`

C

`8.6xx10^(-3).^(@)C`

D

`9.6xx10^(-3).^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
C
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