Betty's final kinetic energy = 602.2 J
Sally's final kinetic energy = 517.2 J
Betty Bodycheck (mB = 55.1 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 41.2 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° counterclockwise from her original direction, and Sally is heading back and to her right in a direction that is 12.0° from the x-axis.
What are Betty and Sally's final kinetic energies?
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