A multistage (or multi-stage) rocket is a rocket that uses two or more stages, each of which contains its own engines and propellant. A tandem or serial stage is mounted on top of another stage; a parallel stage is attached alongside another stage. The result is effectively two or more rockets stacked on top of or attached next to each other. Taken together these are sometimes called a launch vehicle. Two stage rockets are quite common, but rockets with as many as five separate stages have been successfully launched. By jettisoning stages when they run out of propellant, the mass of the remaining rocket is decreased. This staging allows the thrust of the remaining stages to more easily accelerate the rocket to its final speed and height.

In serial or tandem staging schemes, the first stage is at the bottom and is usually the largest, the second stage and subsequent upper stages are above it, usually decreasing in size. In parallel staging schemes solid or liquid rocket boosters are used to assist with lift-off. These are sometimes referred to as 'stage 0'. In the typical case, the first stage and booster engines fire to propel the entire rocket upwards. When the boosters run out of fuel, they are detached from the rest of the rocket (usually with some kind of small explosive charge) and fall away. The first stage then burns to completion and falls off. This leaves a smaller rocket, with the second stage on the bottom, which then fires. Known in rocketry circles as staging, this process is repeated until the final stage's motor burns to completion.

In some cases with serial staging, the upper stage ignites before the separation- the interstage ring is designed with this in mind, and the thrust is used to help positively separate the two vehicles.

The Taurus rocket is unusual in that its 'stage 1' ignites in flight; this designation is used because its upper three stages are identical to those of the Pegasus rocket, with the 'stage 0' booster replacing the Pegasus' carrier aircraft

Newton's laws of motion are three physical laws that form the basis for classical mechanics. They describe the relationship between the forces acting on a body and its motion due to those forces. They have been expressed in several different ways over nearly three centuries, and can be summarized as follows:

First law: Every body remains in a state of constant velocity unless acted upon by an external unbalanced force. This means that in the absence of a non-zero net force, the center of mass of a body either remains at rest, or moves at a constant velocity.
Second law: A body of mass m subject to a net force F undergoes an acceleration a that has the same direction as the force and a magnitude that is directly proportional to the force and inversely proportional to the mass, i.e., F = ma. Alternatively, the total force applied on a body is equal to the time derivative of linear momentum of the body.
Third law: The mutual forces of action and reaction between two bodies are equal, opposite and collinear. This means that whenever a first body exerts a force F on a second body, the second body exerts a force F on the first body. F and F are equal in magnitude and opposite in direction. This law is sometimes referred to as the action-reaction law, with F called the "action" and F the "reaction". The action and the reaction are simultaneous.


[ Register or Signin to view external links. ]

Hey there is this thing called Google, USE IT!

i hope my posts helped

thanks for all the info guys! but can you please stick to the question im asking and put the number of the question before the answer. I have no idea about rocket

probably should have being listening in class

Rockets blow stuff up

PFO_Shotz wrote thanks for all the info guys! but can you please stick to the question im asking and put the number of the question before the answer. I have no idea about rocket

probably should have being listening in class

look at mine

i answered them all

3. The Liquid is it is more controllable but burns fast. The Solid is less controllable but burns slower.

TheColorGreen wrote

PFO_Shotz wrote thanks for all the info guys! but can you please stick to the question im asking and put the number of the question before the answer. I have no idea about rocket

probably should have being listening in class

look at mine

i answered them all

thanks im repping you right now!

Scrubeh wrote Hey there is this thing called Google, USE IT!

oh really? do you want to send me the link to it? lol