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 [NCERT 1972]

\[mS\,(475-25)+mL=\frac{m{{v}^{2}}}{J}\]

\[mL=mS\,(475-25)+\frac{1}{2}\cdot \frac{m{{v}^{2}}}{J}\]

\[mS(475-25)+mL=\frac{m{{v}^{2}}}{2J}\]

\[mS\,(475-25)-mL=\frac{m{{v}^{2}}}{2J}\]

A bullet moving with a uniform velocity v, stops suddenly after hittin

1.	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 [NCERT 1972]
A.	\[mL=mS\,(475-25)+\frac{1}{2}\cdot \frac{m{{v}^{2}}}{J}\]
B.	\[mS(475-25)+mL=\frac{m{{v}^{2}}}{2J}\]
C.	\[mS\,(475-25)+mL=\frac{m{{v}^{2}}}{J}\]
D.	\[mS\,(475-25)-mL=\frac{m{{v}^{2}}}{2J}\]
Answer» C. \[mS\,(475-25)+mL=\frac{m{{v}^{2}}}{J}\]