Posted by Jennifer on .
A 0.445 kg ice puck, moving east with a speed of 2.82 m/s, has a headon collision with a 0.918 kg puck initially at rest. Assuming a perfectly elastic collision, what will be the speed and direction of each object after the collision?
speed of the ice puck ?
Direction: west
speed of the puck ?
Direction:east

PHYSICS 
bobpursley,
start with the conservation of momentum, find one of the velocities in terms of the other. Then substitue that into the energy equation, and ....work ...it ...out. Get a cup of coffee before you start.