# A rocket has an initial mass of 29,000 kg, of which 20% is the payload. It burns fuel at a rate of 175 kg/s and exhausts its gas at a relative speed of 1.8 km/s. a) Find the thrust of the rocket.  Solved: 315 kN b) Find the time until burnout. Solved: 132.57 s c) Find the rocket's final speed (in km/s) assuming it moves straight upward near the surface of Earth where the gravitational field g is constant. ?

Question

A rocket has an initial mass of 29,000 kg, of which 20% is the payload. It burns fuel at a rate of 175 kg/s and exhausts its gas at a relative speed of 1.8 km/s.

a) Find the thrust of the rocket.

Solved: 315 kN

b) Find the time until burnout.

Solved: 132.57 s

c) Find the rocket's final speed (in km/s) assuming it moves straight upward near the surface of Earth where the gravitational field g is constant.

?

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