A metal block of mass 10.2 kg is dragged along a rough horizontal surface at a constant speed of 8.6 m/s. If the coefficient of friction between the surface and the block be 0.46 find (i) the power generated and (ii) if 40% of the heat is absorbed by the block, find the rate of rise in temperature. Specific heat capacity of the metal is 126"J/kg"-^(@)C.

A metal block of mass 10.2 kg is dragged along a rough horizontal surf

1.	A metal block of mass 10.2 kg is dragged along a rough horizontal surface at a constant speed of 8.6 m/s. If the coefficient of friction between the surface and the block be 0.46 find (i) the power generated and (ii) if 40% of the heat is absorbed by the block, find the rate of rise in temperature. Specific heat capacity of the metal is 126"J/kg"-^(@)C.
Answer» ANSWER :(i) 395.4 W (II) 0.31^(@)C//s`