A block of mass 100g slides on a rough horizontal surface. If the speed of the block decreases from 10 m s–1 to 5 m s–1, find the thermal energy developed in the process.

Given:


mass of block=0.1kg


Formula used:


kinetic energy=1/2mv2


M=mass


V=velocity


Change in kinetic energy = thermal energy developed



3.75J=thermal energy developed


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