In this second part you are asked to analyze rocket propulsion with the present of gravitational field g. This appears for instance when the rocket is launching from the surface of a planet. (1) Describes why you are not allowed to use the momentum conservation here. (2) Evaluate the speed of the rocket measure by inertial observer on the ground as a function of time v(t) if the speed of the gas propulsion with respect to the rocket is vrel and the burning rate is constant =constant! (3) Plot v(t) that you obtained from point (2) above, for three different values of gravitational dm dt field (assuming similar initial mass), which is: • 9moan = 1.62 m/s? Gearth = 9.81 m/s 9jupiter = 24.79 m/s? in a single plot, if the burn rate is constant = 1500 kg/s. Analyze your result and describes how the speed increases for each situation!

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
icon
Related questions
Question
just do number II
Problem Statement
1.
Without external gravitational field
In the first part, you are asked to analyze the rocket propulsion system without any
external forces, such as gravity or air dragging. This situation appears for instance when
rocket is still in the space.
(1) Describes in detail, why you are allowed to use linear momentum conservation
here!
(2) Evaluate the speed of the rocket measure by inertial observer on the ground as a
function of the remaining mass v(m) if the speed of the gas propuision with
respect to the rocket is vrer!
(3) Plot v(m) that you obtained from point (2) above!
(4) Determined analytically at what remaining mass does the speed of the rocket is
maximized!
(5) Determined analytically at what remaining mass does the rocket momentum is
maximized! Interpret your result physically.
(6) Determined analytically at what remaining mass does the rocket kinetic energy is
maximized! Interpret your result physically.
(7) Compare your results from point (4) to (6), why the maximized situation happens
at different remaining mass! Analyze your result.
(8) Derived the thrust force for this case!
II. With external gravitational field
In this second part you are asked to analyze rocket propulsion with the present of
gravitational field g. This appears for instance when the rocket is launching from the surface
of a planet.
(1) Describes why you are not allowed to use the momentum conservation here.
(2) Evaluate the speed of the rocket measure by inertial observer on the ground as a function
of time v(t) if the speed of the gas propulsion with respect to the rocket is vret and the
burning rate is constant =constant!
(3) Plot v(t) that you obtained from point (2) above, for three different values of gravitational
dm
dt
field (assuming similar initial mass), which is:
9moon = 1.62 m/s
9earth = 9.81 m/s
9 jupiter = 24.79 m/s
in a single plot, if the burn rate is constant = 1500 kg/s. Analyze your result and
describes how the speed increases for each situation!
dt
(4) Derived the thrust force for each case!
Transcribed Image Text:Problem Statement 1. Without external gravitational field In the first part, you are asked to analyze the rocket propulsion system without any external forces, such as gravity or air dragging. This situation appears for instance when rocket is still in the space. (1) Describes in detail, why you are allowed to use linear momentum conservation here! (2) Evaluate the speed of the rocket measure by inertial observer on the ground as a function of the remaining mass v(m) if the speed of the gas propuision with respect to the rocket is vrer! (3) Plot v(m) that you obtained from point (2) above! (4) Determined analytically at what remaining mass does the speed of the rocket is maximized! (5) Determined analytically at what remaining mass does the rocket momentum is maximized! Interpret your result physically. (6) Determined analytically at what remaining mass does the rocket kinetic energy is maximized! Interpret your result physically. (7) Compare your results from point (4) to (6), why the maximized situation happens at different remaining mass! Analyze your result. (8) Derived the thrust force for this case! II. With external gravitational field In this second part you are asked to analyze rocket propulsion with the present of gravitational field g. This appears for instance when the rocket is launching from the surface of a planet. (1) Describes why you are not allowed to use the momentum conservation here. (2) Evaluate the speed of the rocket measure by inertial observer on the ground as a function of time v(t) if the speed of the gas propulsion with respect to the rocket is vret and the burning rate is constant =constant! (3) Plot v(t) that you obtained from point (2) above, for three different values of gravitational dm dt field (assuming similar initial mass), which is: 9moon = 1.62 m/s 9earth = 9.81 m/s 9 jupiter = 24.79 m/s in a single plot, if the burn rate is constant = 1500 kg/s. Analyze your result and describes how the speed increases for each situation! dt (4) Derived the thrust force for each case!
Expert Solution
steps

Step by step

Solved in 4 steps with 2 images

Blurred answer
Knowledge Booster
Numerical Calculations
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY