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]
How can a rocket change direction when it is *ea, 6thy ksx9di9hr 6far ou,c e7/qra -vnn2nd2hct in space and is essentially iv2h 7 n2/r-dqcnen,can a vacuum?
参考答案:
When a rocket expels gas in a given direction,
it puts a force on that gas. The
momentum of the gas-rocket system stays constant, and so if the gas is pushed
to the left, the rocket will be pushed to the right due to Newton’s 3rd law. So the rocket must carry some kind of
material to be ejected (usually exhaust from some kind of engine) to change
direction.
本题详细解析:
暂无
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