Final answer:
In an elastic collision between two pucks, apply the principles of conservation of momentum and kinetic energy to determine their final velocities.
Step-by-step explanation:
In an elastic collision, both momentum and kinetic energy are conserved. Let's analyze the collision between the green and yellow pucks. Since the collision is elastic, we can use the principles of conservation of momentum and kinetic energy to determine the final velocities of the pucks.
- First, calculate the initial momentum of the system by adding the momentum of the green puck to the momentum of the yellow puck. The momentum of an object can be calculated by multiplying its mass with its velocity.
- Next, apply the conservation of momentum to find the final velocities of the pucks. The sum of the initial momenta of the pucks should be equal to the sum of their final momenta.
- Finally, use the conservation of kinetic energy to confirm that the collision is elastic. The sum of the initial kinetic energy of the system should be equal to the sum of its final kinetic energy.
By following these steps, you can calculate the final velocities of the pucks in an elastic collision.