Assignment:
A rocket, which is in deep space and initially at rest relative to an inertial reference frame, has a mass of 265*10^105 kg, of which 200*10^5 kg is fuel. The engine is fired for 250s, during which fuel is consumed at the rate of 480 kg/s. The speed of the exhaust product relative to the rocket is 3.23 km/s.
a) What is the rocket's thrust?
b) What is the mass of the rocket after the 250s firing?
c) What is the speed of the rocket after the 250s firing?