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Deffense [45]
2 years ago
8

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

Mathematics
1 answer:
Natasha2012 [34]2 years ago
6 0

Answer:

can't understand language

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