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 f .9ssuoocy 2tam5; m2an object were doubledfelj01jv qaymo,3 fu 8*qy rb,h4q 60l while at the same time the mass of th,* je40 1vfarqyoh 8y3,ubm qqj6 l0lfe object 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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