本题目来源于试卷: Newton’s law of motion，类别为 美国物理杯赛(Physics Bowl)
[单选题]
00.09: Is it possible for an object’sj-)lo.xx1fn vn,ddw ) velocity to increase while itsw7:x(ywqbu9wtml27r oo9u1z tt) kh 8 acceleration decrease92uoow 79q tmkhrw (uytw zx1l8t7:b)s?
A. No, this is impossible because of the way in which acceleration is defined.
B. No, because if acceleration is decreasing the object will be slowing down.
C. No, because velocity and acceleration must always be in the same direction.
D. Yes, an example would be a falling object near the surface of the moon.
E. Yes, an example would be a falling object in the presence of air resistance.
参考答案: E
本题详细解析:
暂无
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