牛顿运动定律练习题42
题目内容

大小分别为1N和7N的两个力作用在一个质量为1kg的物体上,物体能获得的最小加速度和最大加速度分别(     )是                                                                                                                                                                                                                                                                                                                                           

2021-08-11

A.1 m / s2和7 m / s2

B.5m / s2和8m / s2

C.6 m / s2和8 m / s2

D.0 m / s2和8m / s2

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