25 {\rm g} bullet traveling horizontally with a velocity of magnitude 375 {\rm m}/{\rm s} is fired into a wooden block with mass 1.10 {\rm kg},...

A 4.25 {rm g} bullet traveling horizontally with a velocity of magnitude 375 {rm m}/{rm s} is fired into a wooden block with mass 1.10 {rm kg}, initially at rest on a level frictionless surface. The bullet passes through the block and emerges with its speed reduced to 110 {rm m}/{rm s}.