本题目来源于试卷: Motion with air resistance，类别为 美国物理杯赛(Physics Bowl)
[单选题]
05.08: Why do raindrops fall with constant speed during the late8wzhp/0l q.y lr stages xn6 z28hpw ouf*.pr(se 6jjvr8 ix +9gof their 8*6 w2.x9fhxnuoje6pvi8sz jgrpr(+descent?
A. The gravitational force is the same for all drops.
B. All drops fall from the same height.
C. The gravitational force is negligible for objects as small as raindrops.
D. The gravitational force cannot increase the speed of a falling object to more than 9.8 m/s.
E. Air resistance balances the gravitational force on a drop.
参考答案: E
本题详细解析:
暂无
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