Two ice skaters, Daniel (mass 65.0 kg ) and Rebecca (mass 45.0 kg ), are practicing....

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Physics

Two ice skaters, Daniel (mass 65.0 kg ) and Rebecca (mass 45.0kg ), are practicing. Daniel stops to tie his shoelace and, whileat rest, is struck by Rebecca, who is moving at 14.0 m/s before shecollides with him. After the collision, Rebecca has a velocity ofmagnitude 8.00 m/s at an angle of 53.1 ∘ from her initialdirection. Both skaters move on the frictionless, horizontalsurface of the rink.

Part A

What is the magnitude of Daniel's velocity after thecollision?

v =  m/s  

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Part B

What is the direction of Daniel's velocity after thecollision?

θ =  ∘ from the Rebecca's original direction

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Part C

What is the change in total kinetic energy of the two skaters asa result of the collision?

Answer & Explanation Solved by verified expert
3.8 Ratings (747 Votes)
a Let v Daniels velocity after the collision at an angle with Rebeccas original direction As no external force acted during the collision initial and    See Answer
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