A 75.0-kg ice skater moving at 10.0 m/s
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Transcribed Image Text:5.00 m, her brother, who is initially at rest, hops on her
back, and they continue down the hill together. What
hill. After she has descended a vertical distance of
W-covered
the colli
initial
at the bottom of the hill if the total ver-
is their speed
ical drop is 15.0 m? Gayle's mass is 50.0 kg, the sled
iea mass of 5.00 kg, and her brother has a mass of
Bef
5.
30.0 kg.
. RIO A 75.0-kg ice skater moving at 10.0 m/s crashes
into a stationary skater of equal mass. After the colli-
sion, the two skaters moOve as a unit at 5.00 m/s. Sup-,
pose the average force a skater can experience with-
out breaking a bone is 4 500 N. If the impact time is
0.100 s, does a bone break?
33. A railroad car of mass 2.00 × 104 kg moving at 3.00 m/s
collides and couples with two coupled railroad cars,
each of the same mass the single car and moving in
The same direction at 1.20 m/s. (a) What is the speed
39.
2 (b) How
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