tion 7: Similarly, write down the expressions (no numbers) for the final momentum of each cart, as well as the total final momentum of a system consisting of Cart 1 and Cart 2. Pif P2f Pf

As shown in the figure below, two blocks (m1 and m2) are each released from rest at a height of h = 3.53 m on a frictionless track and when they meet on the horizontal section of the track they undergo an elastic collision. If m1 = 2.50 kg and m2 = 4.15 kg,determine the maximum heights (in m) to which they rise after the collision. Use the coordinate system shown in the figure.

1. Suppose a clay model of a koala bear has a mass of 0.25 kg and slides on ice at a speed of 0.85 m/s. It runs into another clay model, which is initially motionless and has a mass of 0.45 kg. Both being soft clay, they naturally stick together. Friction on ice can be neglected. A sketch depicting the collision in Part 1 should have looked like this. V₁ Before collision O % 5 I T G O Koala bear clay model O Second clay model O both the clay models (a) To find the combined final velocity of the clay models, how will you define a system? 16 40 H After Collision 17 4- & (b) In the system in part (a), the forces of collision between the clay models are: 7 hp U * m₁ 00 8 m₁ m₂ T 9 m₂ v₂ 0 J K V1,2 V f O ? 11 I - P 52°F { + Co 940) O [ = insert } 11:39 AM 10/28/2022 1 prt sc 4 backspa 1 pause

About  ELASTIC collisions: (both questions are related to each other.) Please answer it short and easy to understand What happens if the cars have the same mass but one car has twice the velocity?  If one car has twice the mass as the second car, can you still get the cars to bounce back equally?  Explain how.