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]
00.21: A car of mass m slides across a pat6d ya(ynp3rtk3*lf8 ft fe67kch of ice at a speedyv4z au; /6z(oqfk w-v v with its brakes locked. It then hits dry pavement and skids to a sz;yf4ov/q v(zwk -u6atop in a distanced. The coefficient of kinetic friction between the tires and the dry road is μ .
If the car had a mass of 2m, it would have skidded a distance of
A. 0.5d
B. $d$
C. 1.41d
D. 2d
E. 4d
参考答案: B
本题详细解析:
暂无
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