飞机轮船运动时受到的阻力大小与运动速度有关.当运动速度很大时阻力的大小与速度的平方成正比.如果这时要将飞机轮船做匀速运动的速度增大到原来 Template




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tomski飞机轮船运动时受到的阻力大小与运动速度有关.当运动速度很大时阻力的大小与速度的平方成正比.如果这时要将飞机轮船做匀速运动的速度增大到原来 coloring