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Two ice skaters, Daniel (mass 70.0] kg) and Rebecca (mass 50.0 kg) are practicing. Daniel stops...

Two ice skaters, Daniel (mass 70.0] kg) and Rebecca (mass 50.0 kg) are practicing. Daniel stops to tie his shoelace and, while at rest, is struck by Rebecca, who is moving at 15.0 m/s before she collides with him. After the collision, Rebecca has a velocity of magnitude 7.0 m/s at an angle of 38.0° counterclockwise from her initial direction (as viewed from above). Both skaters move on the frictionless, horizontal surface of the rink.

a-What is the magnitude of Daniel’s velocity after the collision?

b-What is the direction of Daniel’s velocity after the collision?

c-What is the change in total kinetic energy of the two skaters as a result of the collision?

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