本题目来源于试卷: Physics Unit7: Linear Momentum，类别为 国际高中通用物理
[单选题]
A child falls sideways off a sled while sledding on frictionlpp vjd;-zyoy :i :t9ewl6i,r3ess ice. What happ-ilyt zrw: vi:dpyo,e9 ;pj 63:(kxt,z:.26 6 jv lqid2izxfd9lyla o ifozd :2.(z:l a6 v9yl,2k6qd ixltjx ens to the velocity of the sled?
A. It increases.
B. It remains the same.
C. It decreases.
D. cannot be determined from the information given
参考答案: B
本题详细解析:
暂无
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