A hammer of mass 1kg having speed of 50 m/s, hit a iron nail of mass 2 – McqOptions

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1.	A hammer of mass 1kg having speed of 50 m/s, hit a iron nail of mass 200 gm. If specific heat of iron is 0.105 cal/gm°C and half the energy is converted into heat, the raise in temperature of nail is [RPMT 1995]
A.	7.1°C
B.	9.2°C
C.	10.5°C
D.	12.1°C
Answer» B. 9.2°C

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