Lead bullet strikes a wall and stops: temperature rise when a fraction of its energy becomes heat

1. A.
   $\frac{v^2 s}{2J}$
2. B.
   $\frac{v^2}{4Js}$
3. C.
   $\frac{v^2 s}{J}$
4. D.
   $\frac{2v^2}{Js}$

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1. A.
   $\frac{3V^2}{8Js}$
2. B.
   $\frac{5V^2}{8Js}$
3. C.
   $\frac{3V^2}{4Js}$
4. D.
   $\frac{5V^2}{4Js}$

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1. A.
   $\dfrac{8}{3}$
2. B.
   $\dfrac{4}{3}$
3. C.
   $\dfrac{3}{8}$
4. D.
   $\dfrac{3}{4}$

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