A rocket has initial mass of 25x10 kg of which 80 percent is the Q) fuel and the rest is payload. If burns fuel at a rate of 200 kg/s and exhaust its gas at a relative speed of 1.8 km/s: a) Find the thrust of the rocket. b) Find the time until burnout, and c) After firing for 50 seconds i- find the mass of the rocket, and ii- find its speed assuming it moves upward near the surface of the earth ( neglect the earth's rotation).

A rocket has initial mass of 25x10 kg of which 80 percent is the Q) fuel and the rest is payload. If burns fuel at a rate of 200 kg/s and exhaust its gas at a relative speed of 1.8 km/s: a) Find the thrust of the rocket. b) Find the time until burnout, and c) After firing for 50 seconds i- find the mass of the rocket, and ii- find its speed assuming it moves upward near the surface of the earth ( neglect the earth's rotation).

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

A rocket has initial mass of 25x10 kg of which 80 percent is the
Q)
fuel and the rest is payload. If burns fuel at a rate of 200 kg/s and
exhaust its gas at a relative speed of 1.8 km/s:
a) Find the thrust of the rocket.
b) Find the time until burnout, and
c) After firing for 50 seconds
i- find the mass of the rocket, and
ii- find its speed assuming it moves upward near the surface of the earth
( neglect the earth's rotation).

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