gc physics textbook chapter 6 problems (id: d1a9cb37e)

本题目来源于试卷: gc physics textbook chapter 6 problems，类别为 IB物理学

[填空题]
$$\begin{gathered} \text{A projectile is fired at an upward angle of 45.0o from the top of a 265-m cliff with a speed of 185m/s. What will} \\ \text{be its speed when it strikes the ground below?(Use conservation of energy.)} \end{gathered}$$    m/s

参考答案: 199±2%


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