Show all working explaining detailly each step.Answer Qb(i), (ii) & (iii) (b) A spacecraft of mass 20000 kg is travel-Ting at 1500 m s-. Its rockets eject hotgases at a spced of 1200 ms- relative tothe spacecraft. During one burn, thereckets are fired for a 5.0s period. in thistime the speed of the spacecraft increasesby 3.0 ms.(i) What is the acceleration of thespacecreft?(ii) Assuming that the mass of fuelejected is negligible compared withthe mass of the spacecraft determinethe distance travelled during theburn. Give your answer to foursignificant figures.(ili) What is the thrust produced by therocket?(iv) Determine the mass of gas ejectedby the rocket during the burn.[АЕВ, "92]

Given: The mass of spacecraft, M = 20,000 kg The speed of aircraft, u = 1500 m/s The speed of hot…

(b) A spacecraft of mass 20000 kg is travel- Ting ut 1500 m s. Its rockets eject hot gases at a spced of 1200 ms- relative to the spacecraft. During one burn, the reckets are fired for a 5.0s period. in this time the speed of the spacecraft increases by 3.0 ms. (i) What is the ecceleration of the spacecraft? (ii) Assuming that the mass of fuel ejected is negligible compared with the mass of the spacecraft determine the distance travelled during the burn. Give your answer to four significant figures. (ii) What is the thrust produced by the rocket? (iv) Determine the mass of gas ejected by the rocket during the burn.

(b) A spacecraft of mass 20000 kg is travel- Ting ut 1500 m s. Its rockets eject hot gases at a spced of 1200 ms- relative to the spacecraft. During one burn, the reckets are fired for a 5.0s period. in this time the speed of the spacecraft increases by 3.0 ms. (i) What is the ecceleration of the spacecraft? (ii) Assuming that the mass of fuel ejected is negligible compared with the mass of the spacecraft determine the distance travelled during the burn. Give your answer to four significant figures. (ii) What is the thrust produced by the rocket? (iv) Determine the mass of gas ejected by the rocket during the burn.

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

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Concept explainers

Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.

Question

Show all working explaining detailly each step.

Answer Qb(i), (ii) & (iii)

(b) A spacecraft of mass 20000 kg is travel-
Ting at 1500 m s-. Its rockets eject hot
gases at a spced of 1200 ms- relative to
the spacecraft. During one burn, the
reckets are fired for a 5.0s period. in this
time the speed of the spacecraft increases
by 3.0 ms.
(i) What is the acceleration of the
spacecreft?
(ii) Assuming that the mass of fuel
ejected is negligible compared with
the mass of the spacecraft determine
the distance travelled during the
burn. Give your answer to four
significant figures.
(ili) What is the thrust produced by the
rocket?
(iv) Determine the mass of gas ejected
by the rocket during the burn.
[АЕВ, "92]

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