m, m, V. V. P total V. . 12 1.20 kg 1.20 kg +1.50 m/s -1.80 m/5 2.40 kg 4.80 kg +1.30 m/s 7.00 kgm/s 1.50 kg 5.50 kg +3.20 m/s +.800 m/5 2.50 kg 1.20 m/s 0.0 m/S Describe the effect of an inelastic collision on the total kinetic energy of the two-object system. Conclusion Questions: 4. How fast must a 250. gram cart be traveling to have a momentum of .450 kgm/s? 5. A .230 kg baseball is thrown with a speed of 41 m/s. What is the ball's momentum? 6. If the above ball comes to rest in the catcher's mitt in .085 seconds, how much force does the ball apply on the catcher's mitt? (hint: use the impulse-momentum theorem ) 7. Imagine you are ice skating with your BFF. Both of you at rest, when you shove him/her away from you. You have a mass of 65 kg and he/she has a mass of 55kg. When you shove off, you move away with a velocity of 2.0 m/s. With what velocity does your BFF move away from you? B. If a 250. gram cart moving to the right with a velocity of +.31 m/'s collides inelastically with a 500. gram cart traveling to the left with a velocity of -.22 m/s, what is the total momentum of the system before the collision? 9. What is the resulting velocity of the above two-car system (stuck together)