A bullet of mass 3.9 g was fired at a stationary ball of lead. The head on impact moved the 10 kg ball at a velocity of .3703 m/s. If energy losses due to heat and internal energy are ignored. What was the speed of the bullet?
a)370 b)950 c)549 d)975
momentum is conserved:
.039*v=(.039+10).3703
solve for v