2006-11-02 04:01:17 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Physics
It pushes against itself. The gasses being expelled are under pressure and cannot escape fast enough, so they push against the rochet itself to try and get out faster.
2006-11-02 04:04:10 · answer #1 · answered by xorosho 3 · 1⤊ 1⤋
It doesn't need to push against anything. For evey action, there is an equal and opposite reaction.
So picture sitting on the back of the rocket and throwing large rocks off into space. When you throw the rock and it speeds off, you impart the same amount of force, in the opposite direction, to the rocket. This is exactly what rocket motors do, only they use gas instead of rocks.
2006-11-02 12:03:57 · answer #2 · answered by Anonymous · 2⤊ 1⤋
The rocket works on the of Conservation of Momentum Principle. The backward momentum of the rocket exhaust imparts a forward momentum to the rocket irrespective of whether there is an atmosphere or not.
2006-11-02 12:20:45 · answer #3 · answered by quark_sa 2 · 0⤊ 0⤋
A rocket engine is a reaction engine. When the hot exhaust blasts out of the rocket, it puts an equal force against the rocket propelling the rocket forward.
2006-11-02 12:04:56 · answer #4 · answered by Anonymous · 2⤊ 1⤋
The rocket has to push out of the Earth's atmosphere. Then when out in space, the other planets and the sun all exert a gravitational force upon the spacecraft. Once in space it only uses rockets to make minor corrections, or to slow down, or speed up to return to Earth.
2006-11-02 12:04:47 · answer #5 · answered by Aaron 3 · 0⤊ 2⤋
The rocket pushes against the gas it's kicking out it's tailpipe.
2006-11-02 17:38:38 · answer #6 · answered by Nomadd 7 · 0⤊ 0⤋
Newton's action for every reaction.
we all know this yet we cannot apply it correctly. the rocket does not push against the atmosphere for thrust. neither does it push itself for thrust. it pushes on its own exhaust.
by losing fuel quickly in one direction, the rocket has to go in the other direction. THAT is how newton's third law applied in the correct context.
2006-11-02 12:09:20 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Itself...
For every action ( explosive exhaust ), there is an equal but oppisite reaction ( push / thrust )...It is not "pushing" against anything...
2006-11-02 12:03:53 · answer #8 · answered by Anonymous · 2⤊ 1⤋
Newtons 1st law of motion, an object in motion tends to stay in moton in astraight line until a force acts upon it. Rockets are used to turn it.
2006-11-02 12:03:24 · answer #9 · answered by science teacher 7 · 0⤊ 4⤋