Physics, 15.06.2021 15:00 salgadoj6933
Skater with a mass of 50.0 kg slides across an icy
pond with negligible friction. As he approaches a
friend, both he and his friend hold out their hands,
and the friend exerts a force in the direction oppo-
site to the skater's movement, which slows the skat-
er's speed from 2.0 m/s to 1.0 m/s. What is the
change in the skater's kinetic energy?
A. β25 J
C. β 100J
B. -75J
D. -150Jβ
Answers: 3
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Skater with a mass of 50.0 kg slides across an icy
pond with negligible friction. As he approaches...
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