本题目来源于试卷: Physics Unit8: Rotational Motion，类别为 通用国际物理
[单选题]
The bolts on a car wheel require tightenw bv2ec lan.;f/u+x2,c1gon p ing to al m,2/ +y) y-r* c7pdutqyfrjl torque of 90 Nm. If a 30 cm long wrench is used, what is the magnitude of t)qy2cpm l r*y 7,dftur -y/l+jhe force required when the force applied at $53^{\circ}$ to the wrench?
A. $190 \; N$
B. $380 \; N$
C. $19 \; N$
D. $38 \; N$
参考答案: B
本题详细解析:
暂无
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