A hammer of mass 1 kg having speed of 50 m/s, hit a iron nail of mass – McqOptions

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1.	A hammer of mass 1 kg having speed of 50 m/s, hit a iron nail of mass 200 gm. If specific heat of iron is \[0.105 cal/gm\,{}^\circ C\]and half the energy is converted into heat. the raise in temperature of nail is
A.	\[7.1{}^\circ C\]
B.	\[9.2{}^\circ C\]
C.	\[10.5{}^\circ C\]
D.	\[12.1{}^\circ C\]
Answer» B. \[9.2{}^\circ C\]

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