A Rocket having initial mass `5xx10^(6)kg` , which include mass of fuel of mass `4xx10^(6)kg` is ejecting gas with velocity `4000m//s` relative to Rocket when entire fuel finishes?

A Rocket having initial mass 5xx10^(6)kg , which include mass of fuel of mass 4xx10^(6)kg is ejecting gas with velocity 4000m//s relative to Rocket. Then what will be the velocity of rocket when entire fuel finishes?

A rocket has total mass 1000 kg with fuel of 900 kg. It ejects fuel at the rate of 1 kg/s with an exhaust velocity of 2 km//s relative to rocket. The maximum velocity attained by rockct is:

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) )

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) )

A rocket is ejecting a mass m of gases per unit time with velocity V relative to the rocket, 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

A rocket of initial mass m ( including fuel) ejects mass at a constant rate of 25 kg/s with a speed 60 m/s relative to the rocket. If the acceleration of the rocket 3.5 minutes after the firing is 2m//s^(2) . What is the initial mass of the rocket ? [Neglect gravity] Express your answer in unit of 10^(3) kg

A rocket burns 0.5 kg of fuel per second ejecting it as gases with a velocity of 1600 m//s relative to the rocket . How much force is exerted on the rocket ? Also , calculate the velocity attainted by the rocket , when its mass reduces to (1)/(200) th of its initial mass .

While leunching a rocket a rocket of mass 2xx 10^(2) kg , a force of 5 xx 10^(5) . N is applied for 10 seconds . What is the velocity attained by the rocket at the end of 10 s ?