Principle on which a rocket works?

Answer 1

Technically it doesn't "fly", but is propelled by thrust. Unlike an jet, propeller aircraft or helicopter, the rocket has no wings to produce lift.

Think of it like a balloon you have just inflated, but you are holding the end closed with your fingers. Now release that balloon and it will appear to fly around the room until the thrust from the escaping air is depleted. A rocket produces thrust by burning fuels, not pressurized air - except the rocket has a sophisticated guidance system, which keeps it on course (as apposed to shooting all over the place like a balloon.)

So, a rocket is propelled by burning fuels (commonly liquid hydrogen and oxygen) which produce thrust. The rocket's thrust output is modified via manipulation of both thrust output and altering the direction of the control thrusters. And hence, it appears to fly.

Answer 2

The Principle behind rocket propulsion is the conservation of Vector energy, E=mcV.

The change in energy is dE/dr=dmcV/dr where r=ct.

At conservation of energy 0=dE/dr=dmcV/dct=dmV/dt.

This gives 0= Vdm/dt + mdV/dt where dm/dt is the rocket mass escaping creating a vector force Vdm/dt that is balanced by a force mdV/dt accelerating the rocket body.

Vdm/dt= V(dE/dt)/c^2 = VdE/cdr=VF/c = P/c where E=mc^2, Force F=dE/dr and P=VF vector power.

Physics conventionally considers energy a scalar but energy has a scalar and a vector manifestation, in other words, Energy is a Quaternion.

Answer 3

The four principles of flight are Thrust, Lift, Drag and Gravity

Answer 4

Rocket propulsion works on the principle of Newton's Second law, it represents a system of variable mass.