本题目来源于试卷: Physics Unit10: Fluids Related Topics，类别为 通用国际物理
[单选题]
In a hydraulic garage lift, the small k5vni5 u 9jicb-y8v +gpiston has a radius of 5.0 i/)9tq cjgy . z;,cifdcm and the large piston has a radius of 1c9cj)qfit /z;id.yg,5 cm. What force must be applied on the small piston in order to lift a car weighing 20,000 N on the large piston?
A. $6.7 \times 10^{3} \; N$
B. $5.0 \times 10^{3} \; N$
C. $2.9 \times 10^{3} \; N$
D. $2.2 \times 10^{3} \; N$
参考答案: D
本题详细解析:
暂无
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