gc physics textbook chapter 6 problems (id: de6af29a2)

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

[填空题]
In the high jump, Fra shw8,xawn)n+ n’s kx xd6ez24 -lyvlw/whnlgo/ :n us+6s ,inetic energy is transformed into gravitational potential energy without the aid of a polegnl/e6dl/ x,y4w+s: uzo2 vnsl6xw-h . With what minimum speed must Fran leave the ground in order to lift her center of mass 2.10 m and cross the bar with a speed of 0.7m/s.    m/s

参考答案: 6.45±2%


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