本题目来源于试卷: Typical Forces，类别为 美国物理杯赛(Physics Bowl)
[单选题]
01.11: A 5 kg block rests on a flat plane in 6lzpk+;6qiz jclined at an angle or xh5f-:e1 4qvyki-d of $30^{\circ}$ to the horizon as shown in the diagram below.
What would be the acceleration of the block down the plane assuming the force of friction is negligible?
A. 0.5 $m/s^{2}$
B. 0.87 $m/s^{2}$
C. 5 $m/s^{2}$
D. 8.7 $m/s^{2}$
E. 10 $m/s^{2}$
参考答案: C
本题详细解析:
暂无
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