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The rocket used for Apollo missions to the moon was named the Saturn V (five). Actually the Saturn V is three rockets called 'stages' stacked one on top of the other. The bottom, or first stage is the one that starts for liftoff.

Since just before liftoff the speed is zero, the speed 'at liftoff' is just a tiny bit faster than zero. The speed gets faster and faster as time passes and the rocket moves up.

The Saturn V is a liquid fuel rocket -- that is, it uses liquid fuel. Liquid fuel rockets accelerate (build up speed) slowly. Solid fuel rockets like the two used for liftoff of the Shuttle start fast, something like a bullet.

I'm including a link to a video of several Saturn V launches. The launch of Apollo 11, Neil Armstrong's moon flight is about one minute into the video and Apollo 15 about three minutes. You can see the rocket actually lift off and see how it sort of lumbers into motion -- after all, it weighs six million pounds.

But, once it gets going things pick up. The first stage burns for 2.5 minutes, lifting the rocket to a height of 42 miles and a speed of 6164 mph (almost ten thousand kilometers per hour). At this point the first stage is thrown away and the second stage starts. The second stage burns After the S-IC sequence, the S-II second stage burns for 6 minutes taking it to 109 miles and 15,647 mph (about 25,000 kilometers per hour). The third stage burns for another 2.5 minutes, reaching a speed 17,450 mph before it's fuel is used up.

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How many forces does a rocket have at lift off?

-- Gravity. -- Thrust of the rocket engines. Slightly after lift-off, as the vehicle begins to pick up some vertical speed, air resistance also appears.


What is lift from a rocket?

Rockets do not have lift, they have thrust.


How does weight thrust lift and drag affect a rocket launch?

Weight refers to the force of gravity acting on the rocket, thrust is the force propelling the rocket upward, lift is the force generated by the rocket's fins to keep it stable, and drag is the resistance encountered as the rocket moves through the air. Weight must be overcome by thrust for the rocket to launch, while lift helps the rocket maintain stability and drag opposes its forward motion. Balancing these forces is crucial for a successful rocket launch.


What kind of force is needed to launch rocket ships?

Rocket ships are launched by a combination of forces, including the thrust generated by the rocket engines and the force needed to overcome gravity. The thrust from the rocket engines propels the rocket forward, while the force needed to overcome gravity allows the rocket to lift off the ground and enter into space.


How does a rocket take off from Earth?

A rocket takes off from Earth by igniting its engines to produce thrust, which propels it upwards against the force of gravity. The thrust generated must be greater than the force of gravity in order for the rocket to overcome Earth's gravitational pull and lift off into space. Once the rocket reaches a certain speed and altitude, it can transition to its intended trajectory.

Related Questions

How does the wing size affect the rocket speed?

Larger wings can provide greater lift, allowing the rocket to fly higher with less resistance, which can increase speed. However, if the wings are too large, they can create excessive drag, slowing down the rocket. It's important to find a balance between lift and drag to optimize rocket speed.


How does a rocket achieve lift?

A rocket achieves lift through the reaction force produced by expelling high-speed exhaust gases out of its engines. This action creates thrust, propelling the rocket upwards in accordance with Newton's third law of motion.


How many forces does a rocket have at lift off?

-- Gravity. -- Thrust of the rocket engines. Slightly after lift-off, as the vehicle begins to pick up some vertical speed, air resistance also appears.


What is lift from a rocket?

Rockets do not have lift, they have thrust.


What are the amount of lift and drag of an rocket?

The lift generated by a rocket is typically insignificant compared to its thrust, as rockets primarily rely on thrust to overcome gravity and achieve lift-off. Drag, on the other hand, is a significant force acting in the opposite direction of the rocket's motion, caused by air resistance. Rockets are designed to minimize drag in order to maximize their efficiency and speed during flight.


How does a rocket fly how does an aeroplane fly?

A rocket flies by expelling gases at high speeds through its rocket engine, creating thrust that propels it forward. An airplane flies using lift generated by its wings as it moves through the air. The shape of the wings and the speed at which the airplane travels help create the necessary lift for flight.


How does a rocket lift off?

123


In FireRed what do you do with the lift key?

use it at the lift in the rocket hideout. rocket hideout is under the game corner. examine the poster in the back


What causes a rocket to lift off?

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What causes a rocket to lift-off?

myself


How heavy was the Saturn 5 rocket on lift off?

The Saturn V rocket weighed about 6.2 million pounds (2.8 million kg) at lift-off.


How does weight thrust lift and drag affect a rocket launch?

Weight refers to the force of gravity acting on the rocket, thrust is the force propelling the rocket upward, lift is the force generated by the rocket's fins to keep it stable, and drag is the resistance encountered as the rocket moves through the air. Weight must be overcome by thrust for the rocket to launch, while lift helps the rocket maintain stability and drag opposes its forward motion. Balancing these forces is crucial for a successful rocket launch.