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A bullet moving with a uniform velocity ...

A bullet moving with a uniform velocity v, stops suddenly after hitting the target and the whole mass melts be m, specific heat S, initial temperature `25^(@)C,` melting point `475^(@)C` and the latent heat L. Then v is given by

A

`mL=mS(475-25)+(1)/(2).(mv^(2))/(J)`

B

`mS(475-25)+mL=(mv^(2))/(2J)`

C

`mS(475-25)+mL=(mv^(2))/(J)`

D

`mS(475-25)-mL=(mv^(2))/(2J)`

Text Solution

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The correct Answer is:
B
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