Mathematics, 16.07.2021 05:50 juli8350

已知一个质点做变速直线运动的位移函数 s  3t 2  e2t , t为时间,则在时刻t  2处的速度和加速度分别为

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已知一个质点做变速直线运动的位移函数 s  3t 2  e2t , t为时间,则在时刻t  2处的速度和加速度分别为...

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已知一个质点做变速直线运动的位移函数 s  3t 2  e2t , t为时 间,则在时刻t  2处的速度和加速度分别为

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已知一个质点做变速直线运动的位移函数 s  3t 2  e2t , t为时间,则在时刻t  2处的速度和加速度分别为