Physics Unit6: Work and Energy (id: 86bc00bf1)

本题目来源于试卷: Physics Unit6: Work and Energy，类别为 通用国际物理

[单选题]
A skier, of mass 40 kg, pus ctx 6,-j+mdc9b8mlydj1rw8/akxs s y:m +1cches off the top of a hill with an initial speed of 4.0 m/s. Neglecting friction, how fast will she be moving after dropping 10ysmajkwc +8x 1c1sr: / m in elevation?

A. 7.3 m/s
B. 15 m/s
C. 49 m/s
D. 196 m/s


参考答案:  B


本题详细解析: 暂无

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