试题与答案

正在水平飞行的炮弹,如果所受的作用力都同时消失,则炮弹将( ) A.沿原来的方向

题型:选择题

题目:

正在水平飞行的炮弹,如果所受的作用力都同时消失,则炮弹将(  )

A.沿原来的方向匀速直线运动

B.立即落回地面

C.沿抛物线落回地面

D.绕着地球飞行

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A

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