本题目来源于试卷: gc textbook chapter 7 Linear Momentum，类别为 通用国际物理
[问答题]
When you release an inflated but untiep2 ox ;g*binh3d b6axe2ut2v; 7, ufuf8/ whkasmalloon, why does it fly across the room? u6ahe8x 7utw2 /,saf2u; vfkm
参考答案:
When you release an inflated but untied balloon
at rest, the gas inside the balloon (at high pressure) rushes out the open end
of the balloon. That escaping gas and
the balloon form a closed system, and so the momentum of the system is
conserved. The balloon and remaining gas
acquires a momentum equal and opposite to the momentum of the escaping gas, and
so move in the opposite direction to the escaping gas.
本题详细解析:
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