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 通用国际物理

[填空题]
In the high jump, Fran’s kinetix f6nd+8 hz1f .odmyw96zh.tz 5sr we5c energy is transformed into gravitatio)8zyzycb(l b d+fyj.8nal potential energy without the aid of a pole. With what minimum sl(c88zjz+yyfd.yb) b peed 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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