A bullet of mass travelling horizontally at strikes and embeds in a pendulum bob of mass .

PHYSICS · Multi-part · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

A bullet of mass

10\,\mathrm{g}

travelling horizontally at

200\,\mathrm{m/s}

strikes and embeds in a pendulum bob of mass

2.0\,\mathrm{kg}

. (a) How much mechanical energy is dissipated in the collision? (b) Assuming that

C_V

for the bob plus bullet is

3R

, calculate the temperature increase of the system due to the collision. Take the molecular mass of the system to be

200\,\mathrm{g/mol}