Science 10 April 17 in-class Practice (id: 52b67fec5)

[问答题]
Can the velocity of an objla. m 23-aawijddwiob+4nr: 5ect be nev j1gxme15h8lkm 3ja1 gative when its accel- eration is positive? What about vice versa? If yes, give examples in eejmhj83l5k1 v axm 1g1ach case.

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