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 spq3 /4zpz)-vtel8gku z,:gk cm9wbm 9 ueed during the lateroqw f(1/dsa3(z 6:dvh qo di6oq. 0kcj stages of their qi/k6zcs jd0fodq1.:d a3o o hq ((v6wdescent?
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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