A 75.0 kg ice skater moving at 10.0 m/scrashes into a stationary skater of equal

Question

A 75.0 kg ice skater moving at 10.0 m/scrashes into a stationary skater of equal mass. After thecollision, the two skaters move as a unit at 5.00 m/s. If the impact time is 0.135 s, what are the magnitudes of the average forcesexperienced by each skater during the collision?
Force experienced by moving skater
1 N

Force experienced by stationary skater
2 N

Suppose the average force a skater can experience without breakinga bone is 1500 N. Does a bone break? 3 yes
no     3 yes
no     3 yes
no     3

Explanation / Answer

1 and 2) F = p/t = m(v) / t = (75 kg x 5 m/s) / .135 s = 2777.8 N Same force for both 3) Since F = 2777.8 > 1500 . Bone breaks. Yes.

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