Rocket System

Why are cars, aeroplanes and rockets streamlined ?

For a Rocket propulsion velocity of exhaust gases relative to rocket is 2km/s. If mass of rocket system is 1000 kg, then the rate of fuel consumption for a rockt to rise up with acceleration 4.9 m//s^(2) will be:-

A second's pendulum is mounted in a rocket. Its period of oscillation decreases when the rocket

A seconds pendulum is mounted in a rocket. Its period of oscillation decreases when the rocket

The rate of mass of the gas emitted from the rear of a rocket is initially 0.1 kg//s . If the speed of the gas relative to the rocket is 50 m//s and the mass of the rocket is 2 kg , then the acceleration of the rocket in m//s^(2) is

A rocket consumes 24kg of fuel per second The burnt gases escape the rocket at a speed of 6.4km//s relative to the rocket Calculate the upthrust recevied by the rocket Also calculate the velocity acquired by the rocket when the mass redues to 1//100th of its initial mass.