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> 台球以速度v 0与球桌边框成α角撞击O点，反弹后速度为v 1，方向与球桌边框夹角仍为α，如图所示．如果v 1＜v 0，OB垂直于桌边，则下列关于桌边对小球的作用力方向的判断中正确的是（　　） A．一定是OA方向 B．一定是OB方向 C．可能是OC方向 D．可能是OD方向

问题：

发布时间：2024-09-10

台球以速度v ₀与球桌边框成α角撞击O点，反弹后速度为v ₁，方向与球桌边框夹角仍为α，如图所示．如果v ₁＜v ₀，OB垂直于桌边，则下列关于桌边对小球的作用力方向的判断中正确的是（　　）

A．一定是OA方向 B．一定是OB方向

C．可能是OC方向 D．可能是OD方向

参考答案：

提问用户：Og***qjw

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