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]
04.32: he driver of a car makes an emergency sz(n nz w;iyfy 4tfc j::em2(7tto1lhh/ j u1j5jdp by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if ithj/1lj duhj5 1 had been traveling twice as fast?
A. 4 times as far
B. 2 times as far
C. 1.4 times as far
D. the same distance
E. the mass of the car must be known
参考答案: A
本题详细解析:
暂无
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