posted by falcon306 .
A man standing on very slick ice fires a rifle horizontally. The mass of the man together with the rifle is 70 kg, and the mass of the bullet is 10g.
Q:If the bullet leaves the muzzle at a speed of 500 m/s, what is the final speed of the man?
I don't know how to set this up, help?
Conservation of momentum applies. Momentum of bullet +momentum man=0