| A | B |
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| What is the magnitude of the momentum of a 22-kg sparrow flying with a speed of 8.1 m/s? | ??? |
| Calculate the force exerted on a rocket, given that the propelling gases are expelled at a rate of 1300 kg/s with a speed of 40,000 m/s (at the moment of takeoff). | ??? |
| A tennis ball may leave the racket of a top player on the serve with a speed of 65.0 m/s. If the ball's mass is 0.0600 kg and it is in contact with the racket for 0.0300 s, what is the average force on the ball? Would this force be large enough to lift a 60-kg person? | ??? |
| A 0.145-kg baseball pitched at 39.0 m/s is hit on a horizontal line drive straight back toward the pitcher at 52.0 m/s. If the contact time between bat and ball is 1.00 x 10^-3 s, calculate the average force between the ball and bat during contact. | ??? |
| A golf ball of mass 0.045 kg is hit off the tee at a speed of 45 m/s. The golf club was in contact with the ball for 5.0 x 10^-3 s. Find (a) the impulse imparted to the golf ball, and (b) the average force exerted on the ball by the golf club. | ??? |
| A 115-kg fullback is running at 4.0 m/s to the east and is stopped in 0.75 s by a head-on tackle by a tackler running due west. Calculate (a) the original momentum of the fullback, (b) the impulse exerted on the fullback, (c) the impulse exerted on the tackler, and (d) the average force exerted on the tackler. | ??? |
