A rocket of total mass 6000 kg (mass of fuel is 5000 kg) is to be launched vertically upwards. If the rate of consumption of the fuel is 60 kgcdot s^(-1), find the minimum veloctiy of ejection of gas so that the rocket can start its upward motion as soon as the gas is ejected.What will be the impulse at that time? (g = 9.8 mcdot s^(-2) )

A rocket of total mass 6000 kg (mass of fuel is 5000 kg) is to be laun

1.	A rocket of total mass 6000 kg (mass of fuel is 5000 kg) is to be launched vertically upwards. If the rate of consumption of the fuel is 60 kgcdot s^(-1), find the minimum veloctiy of ejection of gas so that the rocket can start its upward motion as soon as the gas is ejected.What will be the impulse at that time? (g = 9.8 mcdot s^(-2) )
Answer» ANSWER :980 m`CDOT s^(-1)` ; 58800 N