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 weighing 500 N alonrbn21 13us.o sz k:uwqg a rough surfa1 95ifhy7ubsf ce. The cable attached to the log makes an angle offb hf51y7ius9 $30.0^{\circ}$ 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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