Question

describe the principle of motion of a rocket as a system of Variable mass?​

Answer 1

Answer:

The rocket of mass 'm' is moving with a velocity in the direction as shown in the figure. In time-interval Δt, a mass Δm is ejected out with velocity v in a direction opposite to u. Therefore, mass of the rocket after time Δt becomes (m - Δm). and its velocity increases by Δv to a value of (v + Δv).

Answer 2

$The rocket of mass 'm' is moving with a velocity in the direction as shown in the figure. In time-interval Δt, a mass Δm is ejected out with velocity v in a direction opposite to u. Therefore, mass of the rocket after time Δt becomes (m - Δm). and its velocity increases by Δv to a value of (v + Δv$