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試卷名稱：91年 - 91 學士後西醫：物理#85626
年份：91年
科目：學士後西醫-物理
14.In high-speed motion through air, the resisting force is approximately F
= cv2 . For a human body falling
through air in a spread-eagle position, c is about 0.25kg/m. An 80kg sky diver jumps out of an airplane and
reaches terminal speed before opening the parachute. What is the terminal speed?
(A)49m/s
(B)56m/s
(C)72m/s
(D)84m/s
(E)98m/s
