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> 如图所示，质量为阴的小球以初速度v 0。做平抛运动，经过一段时间t后，速度方向与水平方向的夹角是45°。求： (1)t秒末物体的动量大小与方向； (2)在这一过程中，小球动量的改变量。

问题：

发布时间：2020-03-13

如图所示，质量为阴的小球以初速度v ₀。做平抛运动，经过一段时间t后，速度方向与水平方向的

夹角是45°。求：
(1)t秒末物体的动量大小与方向；
(2)在这一过程中，小球动量的改变量。

参考答案：

提问用户：j6***JMI

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如图所示，质量为阴的小球以初速度v 0。做平抛运动，经过一段时间t后，速度方向与水平方向的 夹角是45°。求： (1)t秒末物体的动量大小与方向； (2)在这一过程中，小球动量的改变量。

可能感兴趣的题目：

如图所示，质量为阴的小球以初速度v ₀。做平抛运动，经过一段时间t后，速度方向与水平方向的

夹角是45°。求：
(1)t秒末物体的动量大小与方向；
(2)在这一过程中，小球动量的改变量。