Calculate Rocket Momentum & Thrust: 20,000kg, 600kg/s, 300m/s

Thread starter Spakfilla
Start date Dec 17, 2010
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Calculations Rocket

In summary, rocket momentum can be calculated by multiplying the mass of the rocket by its velocity, with units of kilogram meters per second. The thrust of a rocket is the force that propels it forward, measured in newtons. Rocket thrust can be calculated by dividing the force produced by the engine by the rate at which mass is expelled, with units of newtons. The rocket's acceleration can be calculated by dividing the thrust by the total mass of the rocket, with units of meters per second squared.

Dec 17, 2010

Spakfilla

A 20 000kg rocket exhausts gases at a constant 600kg per second at 300ms^-1

a) Calculate the momentum of the exhaust gases

b) Deduce the thrust applied to the rocket engines

Any help would be much appreciated

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Dec 17, 2010

Rick88

Just use:

p=mv

and a=dv/dt

(and F=ma, of course).

1. How do you calculate rocket momentum?

Rocket momentum can be calculated by multiplying the mass of the rocket (in kilograms) by its velocity (in meters per second). The formula for momentum is: momentum = mass x velocity.

2. What are the units for rocket momentum?

The units for rocket momentum are kilogram meters per second (kg*m/s). This is a unit of measurement for momentum, which is a physical quantity that describes an object's motion.

3. What is the thrust of a rocket?

The thrust of a rocket is the force that propels it forward. It is measured in newtons (N) and is a result of the rocket's engine pushing out exhaust gases at high speeds.

4. How do you calculate rocket thrust?

Rocket thrust can be calculated by dividing the force produced by the rocket's engine (in newtons) by the rate at which the engine expels mass (in kilograms per second). The formula for thrust is: thrust = force / mass flow rate.

5. Can you calculate the rocket's acceleration using this information?

Yes, the rocket's acceleration can be calculated by dividing the thrust (in newtons) by the rocket's total mass (in kilograms). The formula for acceleration is: acceleration = thrust / mass.