物体在运动过程中,某些相同或相似的物理过程往往会重复出现,虽然在这些过程中,遵循相同的物理规律,但描述物体运动的某些物理量,将随着物理过程的重复发生有规律的变化,组成某些有规律的数列.对此类问题,要借助于数列的有关知识求解.通常在求解物理问题中遇到的数列有等差数列、等比数列和一般数列.一、等差数列例1某质点以加速度a从静止出发做直线运动,在时刻t加速度变为2a,时刻2t加速度变为3a,…,加速度方向始终不 During the movement of objects, some of the same or similar physical processes tend to repeat. Although the same physical laws are followed in these processes, some of the physical quantities that describe the movement of objects will follow the law of repeated physical processes The composition of some regular series.To this kind of problem, we must use the relevant knowledge of the series to solve.Generally encountered in the solution of physical problems are arithmetic sequence, geometric series and general sequence. Difference Example 1 A particle moves linearly at a constant acceleration a and becomes 2a at a moment t, and becomes 3 a at a moment 2 t. The acceleration direction is always not