gc physics textbook chapter 6 problems (id: 43817c261)

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

[问答题]
In Fig. 6–31, water balloons are tossed from the ro0:ogl; l*xuko6n o i1tlgqv ;; zh+(v-s7vk myof of a building, all with the same speed but with different launvkgs h+l;y-z7q(;mv vch angles. Which one has the highest speed on impact? Ignore air resistance.

参考答案:

Since each balloon has the same initial kinetic energy, and each balloon undergoes the same overall change in gravitational PE, each balloon will have the same kinetic energy at the ground, and so each one has the same speed at impact.

本题详细解析: 暂无

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