1.

A moving body of mass 500 gram has 100 J of kinetic energy. Calculate the speed of the body.

Answer»

200Explanation:KINETIC ENERGY =1/2mv^2m = 100G =0.5kg or 1/2 kg1/2 . 1/2. v^2 = 1001/4 . v^2 = 100v^2 = 400V = √400V = 200



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