Question

4.
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 60cm assuming that the loss in
mechanical energy goes into the copper block
as thermal energy. (Specific heat of copper
420 J kg 'K', g = 10ms?)
1) 6.6 x 10-3°C 2) 7.6 x 10-3°C
3) 8.6 x 10-3°C 4) 9.6 x 10-3°C

PLEASE GIVE THE EXPLANATION ALSO...

Answer 1

Explanation:

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