Name a varying mass system Drive the expressions the (i) for the velocity of propulsion of a rocket at any instant (ii) burnt out speed (iii) Thrust on the rocket

What is meant by burnt out speed of a rocket?

Burnt out speed of a rocket …..when…… .

Shows that the path of horizontal projectile is a parabola and derive an expression for (i) Time of flight (ii) Horizontal range (iii) resultant relative and any instant (iv) speed of the projectile when it hits the ground?

A rocket of initial mass m_0 has a mass m_0(1-t//3) at time t. The rocket is lauched from rest vertically upwards under gravity and expels burnt fuel at a speed u relative to the rocket vertically downward. Find the speed of rocket at t=1 .

A rocket of initial mass m_0 has a mass m_0(1-t//3) at time t. The rocket is lauched from rest vertically upwards under gravity and expels burnt fuel at a speed u relative to the rocket vertically downward. Find the speed of rocket at t=1 .

A rocket motor consumes 100 kg of fuel per second, exhausting it with a speed of 5xx10^(3)ms^(-1) . (i) What force is exerted on the rocket ? (ii) What will be the velocity of the rocket at the instant its mass is reduced (1//20) th of its initial mass, its initial velocity being zero. Neglect gravity.

Fuel is consumed at the rats of 100kg//s in a rocket The exhaust gases are ejected at a speed of 4.5 xx 10^(4) ms^(-1) w.r.t the rocket What is the thrust experienced by the rocket Also calculate velocity of the rocket at the instant when its mass is reduced of rocket to be zero .