gc textbook chapter 2 Kinematics in One Dimension (id: 01b26d467)

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]
Pelicans tuck their wings andid+tr i9 (cc y2pwrm; 35lpne/ free fall str.bmrukf(w:yosznx4;wj3t.1 aight down when diving for fish. Suppose a pelican starts its dive from a m jubr:sot4zn;.kw1(x3wf.y height of 16.0 m and cannot change its path once committed. If it takes a fish 0.20 s to perform evasive action, at what minimum height must it spot the pelican to escape? Assume the fish is at the surface of the water.    m

参考答案: 3.3±2%


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