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It could - but that's not the idea (except from start to whatever velocity you select).
Since the rocket must reach either escape or orbital velocity (25000 mph or 18000 mph), if you could start off with that speed, the sudden jerk would tear it apart.
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoA propeller works by pushing against air, but a rocket does not.
Rockets work by Newton's third law: An action creates an equally strong reaction working in the opposite direction.
Perhaps the simplest example is firing a gun: Expanding gas is pushing the bullet forward with the same strength as it is pushing the gun backwards, and the shooter has to absorb the 'kick'. This is the action = reaction principle, and it doesn't need air.
With a rocket, expanding gas is pushing in one direction (action), and instead of absorbing the reaction you let it push the rocket in the opposite direction. Again, no air is needed, and the rocket works equally well in empty space.
For steering, there are small rockets on the side that are fired in small bursts to change the general direction of the spaceship.
See also related link.
Wiki User
∙ 10y agoBecause that's what it was designed to do. To go upward, there must be a force that is stronger than gravity; in the case of the rocket, this force is provided by the gas that is pushed out of the rocket - and which, of course, pushes back against the rocket; do some reading about Newton's Third Law for more details.
Wiki User
∙ 10y agoIt has to use energy to change velocity.
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Under what circumstances can an object move in a circular path without being accelerated?
It can't. If there is a change in direction, there is a change in velocity ("velocity" includes the direction), and therefore, an acceleration.It can't. If there is a change in direction, there is a change in velocity ("velocity" includes the direction), and therefore, an acceleration.It can't. If there is a change in direction, there is a change in velocity ("velocity" includes the direction), and therefore, an acceleration.It can't. If there is a change in direction, there is a change in velocity ("velocity" includes the direction), and therefore, an acceleration.
What causes a spaceshuttle to change in velocity by change in direction?
A change in velocity constitutes a change in direction because velocity includes direction.
If an object is moving at a constant velocity what do you know about its acceleration?
"Acceleration" means change of velocity. If velocity is constant, then acceleration is zero.
Is Velocity any change in motion?
Yes. Acceleration is a change in velocity; velocity is a change in speed and or direction. I am not sure what motion means in a technical sense (velocity?).
Measures the changes in velocity?
A change in velocity is acceleration, so a accelerometer
What do you mean by effective jet velocity of a rocket?
Effective jet velocity of a rocket is the increased velocity of a rocket in a short span of time. It is achieved with the use of either solid or liquid propellants.Ê
What is the velocity a rocket needs to reeach to orbit in space called?
Escape velocity.
Does the escape velocity of a rocket depend on its mass?
no
How does a rocket travel?
By expelling hot gasses extremely fast from the rocket nozzle. Due to the conservation of momentum, expelling mass at high velocity causes the rocket to gain momentum and therefore velocity.
Stages of a rocket going into space?
The stages of a rocket going into space: The first stage of a rocket is used to acquire the acceleration of a rocket. When the fuel of the first stage is exhausted ,it detaches from the rockets and drops off. The velocity at this stage becomes the initial velocity of the second stage .Now the second stage is ignited ,the rocket gains acceleration and it's velocity foes on increasing . The removal of the surplus mass contained in the first stage helps in attaining the higher velocity .When the fuel of the second stage is exhausted ,it too detached from the rocket .Finally at the third stage , the rocket starts off with the required velocity.
How does a rocket get out of earths orbit?
surely a rocket or artificial satellite can get out with help of escape velocity....
The velocity a rocket must reach to establish an orbit around earth is called?
Orbital velocity, or Close orbital velocity.
A rocket of initial mass m0 is shot vertically upward Assume that the motion occurs under constant gravitational acceleration g Let the initial velocity of the rocket on the surface of the earth be?
the initial velocity of the rocket is zero.
A rocket ship leaves earth's atmosphere its initial velocity is less than its final velocity which is this an example of?
positive acceleration
What makes a rocket move forward in Roblox?
The way rockets work is by modifying the velocity and body-gyro of the rocket brick. In simplified terms, after thee rocket is "created" the script detects and saves the direction the rocket is pointing.The script uses the body gyro to lock the rocket brick in the said direction and suspend the rocket in the air; then it modifies the velocity to propel the rocket forward.
What does the engine do on a space rocket?
Provide thrust ... which changes velocity.
Rate of change of the velocity of an object?
The change in velocity is just the change in velocity. The RATE of change of velocity - how quickly velocity changes - is usually called "acceleration".
