gc physics textbook chapter 6 problems (id: 8a43f394d)

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

[填空题]
A 65-kg trampoline artist xdc 4m55x;2 rtef*x eyjumps vertrb8dwgb tto(d -2,n7 iically upward from the top of a platform with a speed of 5.0 m/s. (dtind7- 8 2or(,twb gb$\alpha)$ How fast is he going as he lands on the trampoline, 3.0 m below (Fig. 6-38)?$v_2$ $\approx$    m/s
(b) If the trampoline behaves like a spring with spring stiffness constant 6.2×10$^{4}$ N/m , how far does he depress it? $y_3$ =    m

参考答案:
空格1: 9.2±2%  空格2: -0.31±2% 


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