An 800-G Puck Moving at 1

Multiple Choice

An 80.0-g puck moving at 1.20 m/s on an air table collides with a stationary 100-g puck. After the collision, the 80.0-g puck moves in a direction that makes an angle of 45.0° with the original direction of motion and the 100-g puck moves at an angle of 12.0° in the opposite direction. What is the speed of the 80.0-g puck after the collision?

A) 0.809 m/s
B) 0.297 m/s
C) 0.533 m/s
D) 0.0953 m/s
E) 1.23 m/s