IQ 4. 5. Momentum and Imgulse: Which has the greatest momentum and why? 2 pts Moving continental plate Sports car Speeding bullet Freight train roaring down the track It is said that in ancient times a rich man with a bag of gold coins lime to death while stranded on a frozen lake. Because the ice was mostly frictionless. he could not push himself to shore. \\Vhat could he have done to save himself had he not been so miserly (great word to lookup)? Be sure to talk about momentum and the physics you have leamt about newtons third law. 2 pts A boy hits a 0.05 kg golf ball. giving it a speed of 75 1119's. What is the momentum? 2 pts 'What is the magnitude of the momentum of a 28 g span'ow ying with a speed of 8.4 n1.-"s? 2 pts A golf ball of mass 0.045 kg is hit off the tee at a speed of 45 1115's. The golf club was in contact with the ball for 3.5 x 10'3 3. Find (a) the impulse imparted to the golf ball. and (b) the average force exerted on the ball by the golf club. 4 pts 6. A 95 kg fullback is running at 4.0m/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. 4 pts 7. Jed Dye, a 138kg man, is walking into the grocery store with a velocity of 5.6m/s. He does not realize the 220kg glass door is not open and runs right into it. He bounces off the glass with a velocity of 3.2m/s, what is the recoil velocity of the glass door? 4 pts 8. Tish Hughes, a 67 kg student, is late for class and running down the hall with a velocity of 9.7 m/s. She collides with an unsuspecting 98 kg teacher who is walking the other direction. After the collision, Tish is traveling at 2 m/s in the direction she came from and the teacher flies backwards at 7.56 m/s. What was the teacher's initial velocity before the crash? 4 pts 9. A toy race car with a mass 0.097 kg moves west with a velocity of 0.34 m/s and hits a toy truck moving east with a velocity of 0.45 m/s. They stick together after colliding and move with a velocity of 0.23 m/s. What is the mass of the truck? 4 pts