A Rocket is launched to travel vertically upwards with a constant velocity of 20 m/s. After travelling for 35 seconds rocket develops a snag and its fuel supply is cut off. The rocket then travels like a free body. What is the total height achieved by it? After what time of its launch will it come back to the earth? ( g= 10 m/s2)
A rocket which is ejecting gas with a speed of 100 m/s and the rate of ejection of the gas from the rocket is 800 kg/s. If the mass of the rocket is 4000 kg, find out the initial acceleration of the rocket. Take (g=10 m/s2)
A graph of mass ejected vs time is shown in the figure below. [Given ln(5049)=0.02]
Find the velocity of the rocket after 5 s, if initial launch velocity is 200 m/s and velocity of ejected fuel w.r.t the rocket is 20 m/s. [Take g=10 m/s2 and initial mass of the rocket is 500 kg ].