2. 46.2 3. 26 4. 11.3 5. 15.4545 6. 24.6154 7. 17 8. 23.1176 9. 14.5 10. 52.4 Answer in units of m/s. 017 (part 2 of 2) 10.0 points Find the velocity of the proton after the colli- sion. 1. -157.2 2. -426.176 3. -312 4. -138.6 5. -172.615 6. -220 7. -143.333 8. -127.556 9. -145 10. -185.111 Answer in units of m/s.\f\f\fThis print-out should have 17 questions. Multiple-choice questions may continue on 12 m/s the next column or page - find all choices before answering. 30.4" 2 kg 001 10.0 points 30.40 Why might a wine glass survive a fall onto a carpeted floor but not onto a concrete floor? 2 kg 12 m/S The decrease of velocity of the wine in the carpet If the ball is in contact with the wall for is more than that in the concrete. 0.0991 s, what is the magnitude of the average force exerted on the ball by the wall? 1. 356.909 2. 417.766 2. The decrease of momentum of the wine glass in 3. 514.635 the carpet is less than that in the concrete. 4. 353.135 5. 482.065 6. 100.129 7. 247.932 3. The decrease of velocity of the wine glass in the 8. 458.795 carpet is less than that in the concrete. 9. 150.293 10. 386.443 Answer in units of N. A. Since the carpet is softer than the concrete and the 003 10.0 points force of impact is reduced by the extended time of A barefoot field-goal kicker imparts a speed impact. of 25 m/s to a football initially at rest. If the football has a mass of 0.46 kg and the time of contact with the ball is 0.032 s, what is the magnitude of the force exerted by the The decrease of momentum of the wine glass in ball on the kicker's foot? the carpet is more than that in the concrete. 1. 587.5 2. 966.667 3. 359.375 6. None of these 4. 1913.89 5. 460 002 10.0 points 6. 1452.41 A 2 kg steel ball strikes a wall with a speed 7. 249.333 of 12 m/s at an angle of 30.4 with the normal 8. 612 to the wall. It bounces off with the same 9. 1016.67 speed and angle, as shown in the figure. 10. 523.077 Answer in units of N. 004 10.0 points A child bounces a 46 g superball on the side- walk. The velocity change of the superball is from 28 m/s downward to 16 m/s upward. If the contact time with the sidewalk is 800