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A 25 g bullet travelling at 400 m//s pas...

A 25 g bullet travelling at 400 m//s passes through a thin iron wall and emerges at a speed of 250 m/s. If the bullet absorbs 50 percent of the heat generated, a. what will be the temperature rise of the bullet? B. If the ambient temperature is `20^(@)C` will the bullet melt, and if so how much? Given that specific heat of head is `0.03 "cal"//gm^(@)C` and latent heat of fusion of lead is 6000 cal/kg. It is also given that melting pont of lead is `320^(@)C`.

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