time taken = 10.54s.
Mass = 50 kg.
distance travelled = 100 m.
therefore, velocity = 100/10.54 = 9.49 m/sec
KE = 0.5 * 50 * 90.0601 = 2251.5 J
F by resistance = 1/10 * 50 * 9.8 = 49 N.
work done by resistance = 49 * 100 * cos 180 = -4900 J
power = 4900/10.54 = 464.89 W.
Moderation Team
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