现在来假设物体加速度，其总量取决于物体，与直线运动速度的偏差。

And suppose you postulate that the acceleration of the body, that is the amount it deviates from the straight line motion that it would otherwise take.

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雪橇将以相同速度进行直线运动，除非它受到同样大小的力而被影响。

So the sledge will just keep going in a straight line at the same speed unless its acted upon by the same force.

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利用气垫导轨及电脑通用计数器测定匀加速直线运动的加速度．测定误差为-0.67%。

Using air cushion slide-way and general computer counter to measure the acceleration in uniform linear motion, the error of this experiment is -0.67 percent.

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利用气垫导轨及电脑通用计数器测定匀加速直线运动的加速度．测定误差为-0.67%。

Using air cushion slide-way and general computer counter to measure the acceleration in uniform linear motion, the error of this experiment is -0.67 percent.

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