本题目来源于试卷: Physics Unit4: Force Dynamics & Newton's Laws，类别为 通用国际物理
[单选题]
A bulldozer drags a log weighpt 1z+)5 tnc mjpu)ww4ing 500 N alongbpgmu 0f0m67 h*zhus9t 2qhp1 a rough surface. The cable attached sh q7p hbp6mgu0*tmh2 19uz0fto the log makes an angle of $30.0^{\circ}$ with the ground. The coefficient of static friction between the log and the ground is 0.500. What minimum tension is required in the cable in order for the log to begin to move?
A. $224 \; N$
B. $268 \; N$
C. $289 \; N$
D. $500 \; N$
参考答案: A
本题详细解析:
暂无
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