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 object we2la qo(lq h:l-9xp, 8yb(5zey+wvx8ciz5r s d re doubled while at thel mdt9yendn gr *cj:: m(x;*f* same time the mass of the object was halved,thetm :*9* er ( xyf;nddjn*lgmc:n 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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