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

[问答题]
Can the velocity of an object*w kc46fzfa r.hzbq k6+oq,l0 be negative)kxjo8 y)c1.u9nys 8jv 7n k4a/be *y ruvhbm, when its accel- eration is positive? What about vice versa? If yes, give exampl yvbe1vmru/ j k.*a)9un4yj7sk 8,hnoy8b)cxes in each case.

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