gc physics textbook chapter 6 problems (id: 5eb67ae63)

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 sled is initially giv dakx 4)p/2vpv bvj,gdh9+ok(hqi-2ken hlejt6mia.4;fop/ ti z*;n q93 geh(ta shove up a frictionless 28.0$^{\circ}$ incline. It reaches a maximum vertical height 1.35 m higher than where it started. What was its initial speed?    m/s

参考答案: 5.14±2%


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