本题目来源于试卷: gc textbook chapter 2 Kinematics in One Dimension，类别为 IB物理学
[问答题]
Give an example where both the velocity anvt*j hmz -qd62d acceleratwvgknyvm(32gbp-1 ,rfod2 s9 ion are negative.
参考答案:
If
north is defined as the positive direction, then an object traveling to the
south and increasing in speed has both a negative velocity and a negative
acceleration. Or, if up is defined as
the positive direction, then an object falling due to gravity has both a
negative velocity and a negative acceleration.
本题详细解析:
暂无
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