用细绳系一小球使之在竖直面内作圆周运动，则（）。 -题库考试答案搜索网

用细绳系一小球使之在竖直面内作圆周运动，则（）。

单选题

2021-09-01 23:31

A、小球在任意位置都有切向加速度
B、小球在任意位置都有法向加速度
C、小球在任意位置所受绳子的拉力和重力是惯性离心力的反作用力
D、当小球运动到最高点时，它将受到重力、绳子的拉力和向心力的作用

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正确答案

A

试题解析

标签：青书学堂河北建筑工程学院普通物理(高起本) 黑龙江工程继续教育学院道路桥梁与渡河工程专升本大学物理平时作业2

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