Two pucks collide on an air hockey table. Puck A has a mass of 17.0 g and is initially traveling in the +x direction at 7.00 m/s. Puck B has a mass of 51.0 g and is initially at rest. After the pucks collide, puck A moves away at an angle of 52.0 deg above the +x axis, while puck B travels at an angle of 28.0 deg below the +x axis.

Question

Two pucks collide on an air hockey table. Puck A has a mass of 17.0 g and is initially traveling in the +x direction at 7.00 m/s. Puck B has a mass of 51.0 g and is initially at rest. After the pucks collide, puck A moves away at an angle of 52.0 deg above the +x axis, while puck B travels at an angle of 28.0 deg below the +x axis.
A) Calculate puck A's final speed.
B) Calculate puck B's final speed.
C) What fraction of kinetic energy was lost in this collision?