本题目来源于试卷: Physics Unit8: Rotational Motion,类别为 Generic Physics
[单选题]
A hoop of radius 0.50 m and a mass of 0.20 kg is relepcohnng69 1 s2-r53x+jbdpg pased from rest and allorz+xw 1xzy: mi 4 i0ldlghc,;)wed to roll down an inclined plane. How fast is it+i xw0ldh, y g1lz :czirx;)4m moving after dropping a vertical distance of 3.0 m?
A. 2.2 m/s
B. 3.8 m/s
C. 5.4 m/s
D. 7.7 m/s
参考答案: C
本题详细解析:
暂无
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