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> 关于冲量和动量，下列说法中正确的是（） A．动量是矢量，它的方向与速度的方向相同 B．冲量是矢量，它的方向是由力的方向决定的 C．冲量的方向一定和动量方向相同 D．冲量的方向一定和动量变化的方向相同

问题：

发布时间：2024-09-08

关于冲量和动量，下列说法中正确的是（）

A．动量是矢量，它的方向与速度的方向相同

B．冲量是矢量，它的方向是由力的方向决定的

C．冲量的方向一定和动量方向相同

D．冲量的方向一定和动量变化的方向相同

参考答案：

提问用户：t8***MCx

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关于冲量和动量，下列说法中正确的是（ ） A．动量是矢量，它的方向与速度的方向相同 B．冲量是矢量，它的方向是由力的方向决定的 C．冲量的方向一定和动量方向相同 D．冲量的方向一定和动量变化的方向相同

可能感兴趣的题目：

关于冲量和动量，下列说法中正确的是（）

A．动量是矢量，它的方向与速度的方向相同

B．冲量是矢量，它的方向是由力的方向决定的

C．冲量的方向一定和动量方向相同

D．冲量的方向一定和动量变化的方向相同