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A rocket has an initial mass m, = 2.8X10°kg of which 2.1X10°kg was fuel. The fuel was burned with a constant rate and the exhaust speed u is 2400 m/s. The rocket starts from rest and moves vertically under uniform gravity g = 9.8 m/s2. The speed of the rocket at burnout is 1955 m/s. Assume that the thrust is such that the rocket takes off immediately. %3| a) Calculate the burnout time to of the rocket.

A rocket has an initial mass m, = 2.8X10°kg of which 2.1X10°kg was fuel. The fuel was burned with a constant rate and the exhaust speed u is 2400 m/s. The rocket starts from rest and moves vertically under uniform gravity g = 9.8 m/s2. The speed of the rocket at burnout is 1955 m/s. Assume that the thrust is such that the rocket takes off immediately. %3| a) Calculate the burnout time to of the rocket.

College Physics
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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A rocket has an initial mass m, = 2.8X10°kg of which 2.1X10°kg was fuel. The fuel was burned with a constant rate and the exhaust speed u is 2400 m/s. The rocket starts from rest and moves vertically under uniform gravity g = 9.8 m/s2. The speed of the rocket at burnout is 1955 m/s. Assume that the thrust is such that the rocket takes off immediately. a) Calculate the burnout time to of the rocket.
Transcribed Image Text:A rocket has an initial mass m, = 2.8X10°kg of which 2.1X10°kg was fuel. The fuel was burned with a constant rate and the exhaust speed u is 2400 m/s. The rocket starts from rest and moves vertically under uniform gravity g = 9.8 m/s2. The speed of the rocket at burnout is 1955 m/s. Assume that the thrust is such that the rocket takes off immediately. a) Calculate the burnout time to of the rocket.
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