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 given a+p2fx9m+lx2t (pkxv 49mynv+ yy l0br shove up a frictionless 284 lg:fav-abt +.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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