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A bullet of mass 10times10^(-3)kg moving...

A bullet of mass `10times10^(-3)kg` moving with a speed of `30ms^(-1)` hits an ice block `(0^(0)C)` of 990g kept at rest on a frictionless floor and gets embedded in it. If ice takes 50% of KE ,the amount of ice melted (in grams) approximately is (J=4.2J/cal)(Latent heat of ice =80cal/g )

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