1. Determine the momentum of (a) an electron (m= 9.1 x10-31 kg) moving at 2.18 x 106 m/s (as if it were in a Bohr orbit in the H atom). (b) A 0.45 Caliber bullet (m = 0.162 kg) leaving the muzzle of a gun at 860 m/s. (c) A 110-kg professional fullback running across the line at 9.2 m/s. (d) A 360,000-kg passenger plane taxiing down a runway at 1.5 m/s.
2. A bicycle has a momentum of 24 kg m/s. What momentum would the bicycle have if it had (a) twice the mass and was moving at the same speed? (b) the same mass and was moving with twice the speed? (c) one-half the mass and was moving with twice the speed? (d) the same mass and was moving with one-half the speed? (e ) three times the mass and was moving with one-half the speed? (f) three times the mass and was moving with twice the speed?
3. An 82-kg male and a 48-kg female pair figure skating team are gliding across the ice at 7.4 m/s, preparing for a throw jump maneuver. The male skater tosses the female skater forward with a speed of 8.6 m/s. Determine the speed of the male skater immediately after the throw.
4. Jerome plays middle linebacker for South's varsity football team. In a game against cross-town rival North, he delivered a hit to North's 82-kg running back, changing his eastward velocity of 5.6 m/s into a westward velocity of 2.5 m/s. (a) Determine the initial momentum of the running back. (b) Determine the final momentum of the running back. (c) Determine the momentum change of the running back. (d) Determine the impulse delivered to the running back.
5. Kara Less was applying her makeup when she drove into South's busy parking lot last Friday morning. Unaware that Lisa Ford was stopped in her lane 30 feet ahead, Kara rear-ended Lisa's rented Taurus. Kara's 1300-kg car was moving at 11 m/s and stopped in 0.14 seconds. (a) Determine the momentum change of Kara's car. (b) Determine the impulse experienced by Kara's car. (c) Determine the magnitude of the force experienced by Kara's car.