2007-11-13 18:47:38 · 13 answers · asked by Hu-Li X 1 in Science & Mathematics ➔ Physics
It uses its RCS thrusters to blast out several short bursts in diffrent direction to change its direction.
2007-11-13 18:52:38 · answer #1 · answered by Ironhide 2 · 0⤊ 2⤋
There's a common misconception on how rocket propulsion works. Even on Earth, the lift a rocket provides doesnt come from the flame pushing against anything, but by the properties described by Newton's Third Law of Motion- for every action there is an equal and opposite reaction. There IS a force pushing out the back of the rocket, but that is balanced by an equal force pushing forward on the inside front of the rocket, propelling it forward. This is true in a vacuum or in atmosphere. Check out this NASA site which has a good explanation of this and many other flight/rocketry principles.
http://exploration.grc.nasa.gov/education/rocket/TRCRocket/rocket_principles.html
2007-11-13 19:03:14 · answer #2 · answered by newcamper 2 · 2⤊ 0⤋
A rocket moves by momentum transfer and Newton's 3rd law. Mass from the fuel exhaust is countered by an equal and opposite force imparted to the rocked. Makes no difference if it's in a vacuum. Better actually because there's no air resistance to fight against. There are thrusters that can be aimed in certain directions to maneuver the craft for turning or altering direction.
2016-04-04 00:14:47 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Newton's laws.
For ever action there is an equal and opposite reaction.
Fire a high velocity gas out a rocket nozzle, the rocket moves in the opposite direction.
Vacuum just means no air resistance to the rockets reaction.
2007-11-13 19:04:12 · answer #4 · answered by Phoenix Quill 7 · 2⤊ 0⤋
The vacuum doesn't make any difference. Actually a vacuum makes the rocket move forward easier. Contrary to what some believe, the rocket exhaust doesn't push against air. It's the difference in the pressure of the burning fuel inside the engine and the outside pressure that propels it forward.
2007-11-13 18:56:41 · answer #5 · answered by Anonymous · 1⤊ 1⤋
Guys what ever they taught you is completely wrong!!! earth don't have any gravity and space is not vacuum, if you want to learn more read Veda. Our great scientists Maha Rishis had explained it all there.
2014-11-07 23:12:01 · answer #6 · answered by prajosh 1 · 0⤊ 0⤋
A rocket changes direction by using thrusters. Although it is in a vacuum, resistance is created by the thrusters that help orient shuttles in space.
2007-11-13 18:51:28 · answer #7 · answered by Dan 2 · 0⤊ 3⤋
Its easy, for example when it coming returning to the earth's atmosphere it drops with the engines off/not fully engaged, then they are powered just before it gets into the atmosphere steering it to the desired direction.
Check out the link below,
2007-11-13 18:54:24 · answer #8 · answered by draft 2 · 0⤊ 1⤋
To change direction you need to decelerate in the direction you are traveling and accelerate in your desired direction. This is done in a vacuum by using reaction mass. For simplicity assume no external forces acting on the ship.
F = m(dv/dt) + v(dm/dt) = 0
dv/dt = - (v/m)(dm/dt)
Note that this is a vector relationship, and both m and v are variable.
2007-11-13 18:59:27 · answer #9 · answered by Helmut 7 · 0⤊ 3⤋
they use RCS thrusters. Its smaller directional "rockets" the change the direction of the craft.
2007-11-13 18:51:02 · answer #10 · answered by ariesguy_78 2 · 1⤊ 2⤋