A support beam used in one of the designs for the theme park, is subjected to vibrations along its length; emanating from two machines situated at opposite ends of the beam. The displacement caused by the vibrations can be modelled by the following equations:   x_1=3.75 sin⁡(100πt+2π/9) x_2=4.42 sin⁡(100πt-2π/5) You are required to determine the followings for the vibration of this beam: i. State the amplitude, phase angle, frequency and periodic time of each of these waves. ii. When both machines are switched on, how many seconds does it take for each machine to produce its maximum displacement? iii. At what time does each vibration first reach a displacement of −2??? iv. Use the compound angle formulae to expand x_1 and x_2 into the form     ? sin 100?? ± ? cos 100??, where ? and ? are numbers to be found. v. Using your answers from part iv, express x_1+x_2  in a similar form. Convert this expression into the equivalent form ? sin (100?? + α)

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
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A support beam used in one of the designs for the theme park, is subjected to vibrations along its length; emanating from two machines situated at opposite ends of the beam. The displacement caused by the vibrations can be modelled by the following equations:

 

x_1=3.75 sin⁡(100πt+2π/9)


x_2=4.42 sin⁡(100πt-2π/5)


You are required to determine the followings for the vibration of this beam:

i. State the amplitude, phase angle, frequency and periodic time of each of these waves.

ii. When both machines are switched on, how many seconds does it take for each machine to produce its maximum displacement?

iii. At what time does each vibration first reach a displacement of −2???


iv. Use the compound angle formulae to expand x_1 and x_2 into the form    
? sin 100?? ± ? cos 100??, where ? and ? are numbers to be found.

v. Using your answers from part iv, express x_1+x_2  in a similar form. Convert this expression into the equivalent form ? sin (100?? + α)

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that the rate of change of with respect to follows an exponential model of the form
dt
aekt during the first quarter of the ride and debe-mt during the second quarter with a, b,
Suggest possible values for the constants mentioned and use them to evaluate the angle
through which a rider goes between the time intervals of t = 100 sec and of t = 300 sec
dt
m and k all being constants. The same patterns are followed during the second half of the
ride. The wheel diameter and ride duration still unchanged.
Part 2:
A support beam used in one of the designs for the theme park, is subjected to vibrations along
its length; emanating from two machines situated at opposite ends of the beam. The
displacement caused by the vibrations can be modelled by the following equations:
x₁ = 3.75 sin (100nt +
x₂ = 4.42 sin (100nt -
2π
9
5
2π
You are required to determine the followings for the vibration of this beam:
i. State the amplitude, phase angle, frequency and periodic time of each of these waves.
ii. When both machines are switched on, how many seconds does it take for each machine to
produce its maximum displacement?
iii. At what time does each vibration first reach a displacement of -2mm?
iv. Use the compound angle formulae to expand x₁ and x₂ into the form
A sin 100nt + B cos 100nt, where A and B are numbers to be found.
v. Using your answers from part iv, express x₁ + x₂ in a similar form. Convert this expression into
the equivalent form R sin (100nt + a)
vi. Using appropriate spread sheet software, copy and complete the following table of values:
0.000 0.002 0.001 0.006 0.008 0.010 0012 0011 0016 0.018 0020
叹 English (United Kingdom)
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22:43
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Transcribed Image Text:AutoSave Off File Paste HH Home X Cut Insert Draw Copy Format Painter Arial Design BIU ab 2901 words Unit 2 Engineering Maths Module Brief - 2022-2023 (1).docx . Saved to this PC Layout References Mailings Review 1:=-1¹5- A A Aa A View Help ←= = 2 ↓ वा DE = = 闫~ x ADA 12 X₂ Clipboard Font Paragraph that the rate of change of with respect to follows an exponential model of the form dt aekt during the first quarter of the ride and debe-mt during the second quarter with a, b, Suggest possible values for the constants mentioned and use them to evaluate the angle through which a rider goes between the time intervals of t = 100 sec and of t = 300 sec dt m and k all being constants. The same patterns are followed during the second half of the ride. The wheel diameter and ride duration still unchanged. Part 2: A support beam used in one of the designs for the theme park, is subjected to vibrations along its length; emanating from two machines situated at opposite ends of the beam. The displacement caused by the vibrations can be modelled by the following equations: x₁ = 3.75 sin (100nt + x₂ = 4.42 sin (100nt - 2π 9 5 2π You are required to determine the followings for the vibration of this beam: i. State the amplitude, phase angle, frequency and periodic time of each of these waves. ii. When both machines are switched on, how many seconds does it take for each machine to produce its maximum displacement? iii. At what time does each vibration first reach a displacement of -2mm? iv. Use the compound angle formulae to expand x₁ and x₂ into the form A sin 100nt + B cos 100nt, where A and B are numbers to be found. v. Using your answers from part iv, express x₁ + x₂ in a similar form. Convert this expression into the equivalent form R sin (100nt + a) vi. Using appropriate spread sheet software, copy and complete the following table of values: 0.000 0.002 0.001 0.006 0.008 0.010 0012 0011 0016 0.018 0020 叹 English (United Kingdom) Accessibility: Investigate Type here to search E 0 Search Table Design AaBbc AaBb( AaBbCc AaBbC AaBbCc AaBbCcI AaBbCcI AaBbCcI AaBbCcD AaB AaBbcct AaBbCcD AaBbCcD Heading 1 Heading 2 No Spac... Assignm... Qualific... Body Text Normal Table Pa... Heading 3. Title Subtitle Subtle Em... Emphasis W Layout Pawel Wardzynski PW Styles Focus 80 2°C Cloudy O Find E Comments Replace Select Editing Activate Windows Go to Settings to activate Windows. e Dictate Voice 4) POL Share ✔ Editor Editor + 100% 22:43 22/01/2023 1
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for Part V) should the answer not be -0.4 to the final part of the question since the number put into the equasion is -1.79

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