A copper cube of mass 200g slides down on a rough inclined plane of inclination 37º at a constant speed. Assume that any loss in mechanical energy goes into the copper block as thermal energy. Find the increase in the temperature of the block as it slides down 60 cm. Specific heat capacity of copper = 420 J/kg-K.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(8.6 × 10 –3 ºC)
Sol. mg sin37ºd = ms Δθ
Δθ = 
= 
= 
= 8.6 × 10 –3 ºC.
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