某物体做匀速直线运动,由速度公式V=可知,物体的( ) A.速度与

某物体做匀速直线运动,由速度公式V=可知,物体的(  )

A.速度与路程成正比 B.速度与时间成反比

C.速度大小恒定不变 D.以上说法都对

 

答案

C解:做匀速直线运动的物体的速度大小不变,必须是在相同的时间内,速度大的物体通过的路程一定长;物体做匀速直线运动时,速度大小保持不变,与路程和时间的大小无关.故选项ABD错误,C正确.

故选:C

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