Q. An ice hockey puck slides along the ice at 12 {rm m/s}. A hockey stick delivers an impulse of 4.0 {rm kg cdot m/s} causing the puck to move off in the opposite direction with the same speed. What is the mass of the puck?
Q. A rubber ball is bouncing along a lever floor. after each bounce it only goes back up to half of the height that it just fell from. make a proportional sketch showing this ball bouncing six times.