2006-12-12 15:22:26 · 6 answers · asked by Augustblue 1 in Science & Mathematics ➔ Astronomy & Space
Solid rockets turn off when their fuel runs out .
Liquid fueled rockets can be turned on and off for maneuvering or when a calculated forward speed has been attained.
They have no ignition system,two liquid fuels are mixed causing automatic ignition.
2006-12-13 05:23:17 · answer #1 · answered by Billy Butthead 7 · 0⤊ 0⤋
Rockets get turned off when a needed maneuver is completed. That can only be done with liquid fuel rockets, by cutting the fuel flow off. Solid rocket boosters burn until they are out of fuel.
2006-12-12 15:34:44 · answer #2 · answered by Anonymous · 1⤊ 0⤋
they cant, they have to run out unless they are the rockets and not the boosters/thrusters,
once they have let the upper most -sphere of the earth or planet that they are departing. for all planets though, they must leave the pull of their gravity field or at least get far enough from it for the ship not to be pulled down. (the after force of the thrusters must be greater than the pull of gravity to work) the same goes with planets without an atmosphere too.
demosthenes
2006-12-12 15:30:11 · answer #3 · answered by demosthenes1525 2 · 0⤊ 1⤋
They normally fire until they run out of fuel, which usually takes only 10 minutes or so because they use fuel ridiculously fast. After that, they just coast. A ballistic missile coasts in a parabolic arc until it hits a distant target. The space shuttle coasts around Earth in orbit.
2006-12-12 15:28:14 · answer #4 · answered by campbelp2002 7 · 0⤊ 1⤋
you cant stop a rocket once it has started. Its an all or nothing process. It is so volatile that there would be no way of stopping it.
2006-12-12 15:29:54 · answer #5 · answered by delprofundo 3 · 0⤊ 1⤋
They turn off when they reach their destination - which is done by cutting off fuel supply...
2006-12-12 16:08:40 · answer #6 · answered by Crabby 4 · 0⤊ 0⤋