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 Â
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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
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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
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