gc textbook chapter 2 Kinematics in One Dimension (id: e7f505979)

本题目来源于试卷: gc textbook chapter 2 Kinematics in One Dimension，类别为 IB物理学

[填空题]
A stone is thrown verticalfe05xb c)1jqdsm ewmv 61i7*-cdjq tu,ia :, j3j5idgpzl1/ sf;e h4 ruw7 w1ily upward with a speed of 18.0 m/s
(a) How fast is it moving when it reaches a height of 11.0 m? |v| =    m/s
(b) How long is required to reach this height? t =    s,    s
(c) Why are there two answers to (b)?

参考答案:
空格1: 10.4±2%  空格2: {2.90|0.775}±2%  空格3: {2.90|0.775}±2% 


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