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]
99.03: If the net force on an o9wle85dt 1dtu2yywvb9*zecu :elj3a:3d vh 8bject were dob7 2a.jcykctp b+19z2 7 gza9ki f9ufh8/xqwsubled while at the same time the mass of the objbx 2c1afz p9 k 8g zib99qat y+2fcjw.h/u7s7kect was halved,then the acceleration of the object is
A. 1/4 as great.
B. 1/2 as great.
C. 2 times greater.
D. 4 times greater.
E. unchanged.
参考答案: D
本题详细解析:
暂无
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