• Part A Suppose the first stage of a two-stage rocket has total mass 1.10x10 kg. of which 9000 kg is uel. The total mass of the second stage is 1000 kg, of which 800 kg is fuel. Assume that the relative speed t of ejected material is constant, and ignore any effect of Suppose the entire fuel supply carried by the two-stage rocket is utilized in a single-stage rocket with the same total mass of 120x10 kg. In terms of tler. what is the speed of the rocket, starting from rest, when its fuel is exhausted? Submit Reguest Answer • Part B For the two-stage rocket, what is the speed when the fuel of the first stage is echausted if the first stage carries the second stage with it to this point? This speed then becomes the initial speed of the second stage. At this point, the second stage separates from the frst stage. Submit Reguest Answer • Part C What is the final speed of the second stage? Dex Submit Request Answer • Part D What value of teg is required to give the second stage of the rocket a speed of 8.00 km/s? km/s

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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Part A
Suppose the first stage of a two-stage rocket has total mass 1.10x104 kg. of which 9000 kg is
fuel. The total mass of the second stage is 1000 kg of which 800 kg is fuel. Assume that the
relative speed uez of ejected material is constant, and ignore any effect of gravity. (The effect of
gravity is small during the firing period if the rate of fuel consumption is large.)
Suppose the entire fuel supply carried by the two-stage rocket is utilized in a single-stage rocket with the same total mass of 1.20x10 kg . In terms of Ver. what is the speed of the rocket, starting from rest, when its fuel is
exhausted?
Vrotal =
Vex
Submit
Request Answer
Part B
For the two-stage rocket, what is the speed when the fuel of the first stage is exhausted if the first stage carries the second stage with it to this point? This speed then becomes the initial speed of the second stage. At this point, the
second stage separates from the first stage.
Vex
Submit
Request Answer
Part C
What is the final speed of the second stage?
V2 =
Vex
Submit
Request Answer
Part D
What value of Vex is required to give the second stage of the rocket a speed of 8.00 km/s?
?
km/s
Transcribed Image Text:Part A Suppose the first stage of a two-stage rocket has total mass 1.10x104 kg. of which 9000 kg is fuel. The total mass of the second stage is 1000 kg of which 800 kg is fuel. Assume that the relative speed uez of ejected material is constant, and ignore any effect of gravity. (The effect of gravity is small during the firing period if the rate of fuel consumption is large.) Suppose the entire fuel supply carried by the two-stage rocket is utilized in a single-stage rocket with the same total mass of 1.20x10 kg . In terms of Ver. what is the speed of the rocket, starting from rest, when its fuel is exhausted? Vrotal = Vex Submit Request Answer Part B For the two-stage rocket, what is the speed when the fuel of the first stage is exhausted if the first stage carries the second stage with it to this point? This speed then becomes the initial speed of the second stage. At this point, the second stage separates from the first stage. Vex Submit Request Answer Part C What is the final speed of the second stage? V2 = Vex Submit Request Answer Part D What value of Vex is required to give the second stage of the rocket a speed of 8.00 km/s? ? km/s
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