A rocket weighs 13,500 kg when fuelled up on the launching pad . It is fired vertically upward . Gases are exhausted at the rate of 145 kg per second with velocity 1500 `ms^(-1)` relative to the rocket . What is the thrust on the rocket ?

A rocket of mass 1000 kg exhausts gases at a rate of 4 kg /sec with a velocity 3000 m//s . The thrust developed on the rocket is

A rocket of mass 5000 kg is to be projected vertically upward. The gases are exhausted vertically downwards with velocity 1000ms^(-1) with respect to the rocket. What is the minimum rate of burning the fuel so as to just lift the rocket upwards against gravitational attraction ?

A rocket of mass 1000 kg is to be projected vertically upwards. The gases are exhausted vertically downwards with velocity 100m//s with respect to the rocket. (What is the minimum rate of burning fuel, so as to just lift the rocket upwards against the gravitational attraction?) (Take g=10m//s^(2) )

In a rocket of mass 1000 kg fuel is consumed at a rate of 40 kg/s . The velocity of the gases ejected from the rocket is 5xx10^(4)m//s . The thrust on the rocket is

A rocket has a mass of 100 kg . 90% of this is fuel. It ejects fuel vapours at the rate of 1 kg//sec with a velocity of 500 m//sec relative to the rocket. It is supposed that the rocket is outside the gravitational field. The initial upthrust on the rocket when it just starts moving upwards is

Fuel is consumend at the rate of 50 g per second in a rocket. The exhaust gases are rejected at the rate of 5xx10^(5)cms^(-1) . What is the thrust experienced by the rocket?

A rocket of total mass 1000kg initially is launched from ground. The gases are ejected at the rate 20kg/s with velocity 1000 m/s relative to rocket vertically downwards. The initial acceleration of the rocket is a (in m//s^(2) ). Find a/g . (Take g=10 m//s^(2) )