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)`
