本题目来源于试卷: Physics Unit5: Circular Motion & Gravitation，类别为 通用国际物理
[单选题]
A car of mass m goes1 bex o ,vv.0j45rgkz:rpxyj 6 around a banked curve of radius r with6k*zfvax +7 phbb4-mk speed v. If the road is frictionless due to ice, the car can still negotiate the curve if the horizontal component of the nkz 6bamx*f-+47hvkp bormal force on the car from the road is equal in magnitude to
A. $mg/2$
B. $mg$
C. $mv^2/r$
D. $\tan[v^2/(rg)]$
参考答案: C
本题详细解析:
暂无
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