#### Rocket equation

## What is the rocket equation used for?

The rocket equation can be applied to orbital maneuvers in order to determine how much propellant is needed to change to a particular new orbit, or to find the new orbit as the result of a particular propellant burn.

## What is the formula for rocket fuel?

Rocket engines and boosters carry both fuel and an oxidizer. For solid fuel, the components are aluminum and ammonium perchlorate. For liquid fuel, the components are liquid hydrogen and liquid oxygen. When combined, the fuels release water, which allows the rocket to leave the ground.

## Who invented the rocket equation?

Konstantin Tsiolkovsky

## How do you calculate the velocity of a rocket?

The resultant force is the thrust – weight = 5 – 0.49 = 4.51 N (unrounded). Acceleration = resultant force divided by mass = 4.51 ÷ 0.050 = 90 metres per second squared (90 m/s^{2}). This means that, every second, the speed of the rocket increases by 90 m/s. This is nine times the normal acceleration due to gravity.

## How high will a rocket go?

Sounding rockets can travel much higher than weather balloons (another way of measuring the atmosphere), which can only travel up to an altitude of 40 km. Some sounding rockets travel up to 950 km or higher before falling back to Earth.

## How much fuel is needed for a rocket?

The Saturn V rocket’s first stage carries 203,400 gallons (770,000 liters) of kerosene fuel and 318,000 gallons (1.2 million liters) of liquid oxygen needed for combustion. At liftoff, the stage’s five F-1 rocket engines ignite and produce 7.5 million pounds of thrust.

## What rocket fuel does SpaceX use?

Merlin. Merlin is a family of rocket engines developed by SpaceX for use on its Falcon 1, Falcon 9 and Falcon Heavy launch vehicles. Merlin engines use a rocket grade kerosene (RP-1) and liquid oxygen as rocket propellants in a gas-generator power cycle. The Merlin engine was originally designed for recovery and reuse.

## Is Rocket Fuel expensive?

Rocket fuel cost about $100 per ton, perhaps $120 per ton. Oxygen cost about the same. (Assuming the fuel is methane or RP-1, hydrogen is a little more expensive.) So, the fuel + oxygen cost of a typical rocket that has 1000 tons of rocket propellant (fuel + oxygen) is about $100,000.

## Do rockets pollute the air?

Besides greenhouse gas pollution, kerosene-fueled rockets transport large amounts of black carbon, also known as soot, into the upper layers of the atmosphere. There, it remains for a long time, creating an umbrella that may add to global warming.

## How heavy is a rocket?

The rocket could launch payloads of up to 45 tons to the moon, or 120 tons into Earth orbit. It weighed 6.5 million pounds (3 million kg) fully fueled at liftoff. The Ares I-X weighs 1.8 million pounds (816,466 kg), slightly less than the full Ares I rocket.

## How much does rocket fuel cost?

The total cost of all propellant for “rocket fuel” is $1,380,000. These numbers exclude the hydrogen and oxygen used for cooling, etc.

## How much force does it take to launch a rocket?

It has to produce a lot of thrust to escape the earth’s gravitational pull, known as escape velocity. It has to produce 3.5 million kilograms (7.2 million pounds) of thrust to do so! As the fuel burns, the shuttle gets lighter, and less thrust is needed to push it up, so it speeds up!

## How fast does a rocket go?

7.9 kilometers per second

## How is rocket thrust measured?

Force, and thus thrust, is measured using the International System of Units (SI) in newtons (symbol: N), and represents the amount needed to accelerate 1 kilogram of mass at the rate of 1 meter per second per second.