A 100 g of iron nail is hit by a 1.5 kg hammer striking at a velocity of 60 m s^-1. What will be the rise in the temperature of the nail if one…

A $\displaystyle 100$ g of iron nail is hit by a $\displaystyle 1.5$ kg hammer striking at a velocity of $\displaystyle 60 m s^{-1}$. What will be the rise in the temperature of the nail if one fourth of energy of the hammer goes into heating the nail ? [Specific heat capacity of iron $\displaystyle =0.42 \mathrm{Jg}^{-1}{ }^{\circ} \mathrm{C}^{-1}$ ]