gc physics textbook chapter 3 problems (id: 41c999d50)

本题目来源于试卷: gc physics textbook chapter 3 problems，类别为 IB数学

[填空题]
You buy a plastic dart gun, and beinzpcd q1j 5.q4zg a clever physics student you decide to dcehutm hu56.j ,xb b)5o a quick calculation to find its maximum horizontal range. You shoot the gun straight up, and it takes 4.0 s for the dart to land back at the barrel. What is the maximum horizontal ran,c xb ubt)h.eh m5ju56ge of your gun?   

参考答案: 39±2%


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