College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

Exercise 18

A 5.0-g bullet with a speed of 200 m/s is fired horizontally into a 0.75-kg wooden block at rest on a table. If the block containing the bullet slides a distance of 0.20 m before coming to rest, (a) what is the coefficient of kinetic friction between the block and the table (b) What fraction of the bullet's energy is dissipated in the collision