Enter the exhaust velocity, initial mass, and final mass of a rocket to calculate the change in velocity of that rocket.
Rocket Equation Formula
The following equation is used by the calculator above to calculate the change of velocity of a rocket.
Δv = ev * ln(mi / mf)
- Where Δv is the change in velocity
- ev is the exhaust velocity
- mi is the initial mass
- mf is the final mass after all propellants have been burned.
Conceptually this formula can be described as the change of velocity being the difference between the initial and final velocity which are dependent on the masses and the escape velocity of the exhaust. In this case, the initial velocity is assumed to be 0 since the rocket has not launched yet.
Another important aspect in this equation to keep in mind is that since the velocity is dependent on the natural log of a ratio of masses, the masses should be the same units, but the units don’t affect the outcome.
Rocket Equation Definition
The rocket equation defines the relationship between the velocity of an object and exhaust speed and mass. In other words, it’s a way of describing the conservation of mass when applied to mass.
How to calculate rocket speed?
How to calculate rocket speed?
- First, determine the exhaust velocity.
Calculate the velocity of the exhaust coming out of the rocket.
- Next, determine the initial mass.
Measure the initial mass of the rocket and fuel.
- Next, determine the final mass.
Measure the final mass of the rocket after the fuel has been burned.
- Finally, calculate the rocket speed.
Calculate the speed of the rocket using the formula above.
FAQ
The rocket equation is the formula for calculating the speed of a rocket based on mass and velocity of the exhaust.
Related Terms
| rocket equation calculator |
| rocket equation formula |
| how to calculate rocket equation |
| rocket equation |
| the rocket equation |
| ideal rocket equation |
| rocket equation derivation |
| rocket science equation |
| rocket propulsion equation |
| rocket equation example |
| rocket thrust calculator |
| how to calculate thrust of a rocket |
| rocket science formula |
| rocket fuel equation |
| rocket motion equation |
| rocket velocity equation |
| rocket acceleration equation |
| rocket equation with gravity |
| rocket height calculator |
| rocket equation physics |
| derivation of rocket equation |
| rocket thrust formula |
| how to calculate rocket thrust |
| rocket acceleration calculator |
| how to calculate exhaust velocity |
| tsiolkovsky rocket equation derivation |
| burnout velocity equation |
| rocket launch equation |
| equation of motion of rocket |
| rocket equation explained |
| equation for rocket propulsion |
| basic rocket equation |
| rocket formula physics |
| equation of rocket propulsion |
| rocket propulsion equation derivation |
| rocket speed calculator |
| rocket apogee calculator |
