Iona Physics Warmup

 Animation 1 Animation 2 Animation 3 Animation 4

Read about momentum and its conservation in the textbook (pages 135-137) before attempting this assignment.
Two spherical projectiles (balls), each having a mass of 3.0 kilograms undergo an elastic collision as depicted in the animation above. v1, the velocity of the black ball and v2, the velocity of the red ball, are given in the table. Velocities to the right are positive(+). Velocities to the left are negative (-). Positions are in meters and time is in seconds. The surface may be considered frictionless. Assume there is no change in internal energy.   Determine which one(s) of the animations describes a physical situation.

 PREVIEW
You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT button at the bottom of this page.

# 1. Momentum

How do you calculate the momentum of each object before the collision?
How do you calculate the momentum of each object after the collision?
How can you find the total momentum before and after the collision?
You MUST use complete sentences. --Note: you may control the animation by pushing the buttons.

# 2. Conservation of Momentum

Run each of the animations. List which one(s) are physically possible. You MUST use complete sentences.