Question: A rocket that is in deep space and initially at rest relative to an inertial reference frame has a mass of 2.55 x 105 kg,

A rocket that is in deep space and initially at rest relative to an inertial reference frame has a mass of 2.55 x 105 kg, of which 1.81 x 105 kg is fuel. The rocket engine is then fired for 250 s while fuel is consumed at the rate of 480 kg/s. The speed of the exhaust products relative to the rocket is 3.27 km/s.

(a) What is the rocket's thrust? After the 250 s firing, what are?

(b) The mass and

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