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]
As a freely falling object speeds up, 1ka/wml22p sud/*5ua a o+ih5n 9n edqwhat is happening too qm 4ttchp3, my 4wu nlapq/(x .:svc;de;l79 its acceleration due to gra ;de,u :plpctv myls34wc 4ht(oxa9;q /7 .qmnvity — does it increase, decrease, or stay the same?
参考答案:
As
a freely falling object speeds up, its acceleration due to gravity stays the
same. If air resistance is considered,
then the acceleration of the object is due to both gravity and air
resistance. The total acceleration gets
smaller as the object speeds up, until the object reaches a terminal velocity,
at which time its total acceleration is zero.
Thereafter its speed remains constant.
本题详细解析:
暂无
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