DEPARTMENT OF COMPUTING, ENGINEERING AND TECHNOLGY

DEPARTMENT OF COMPUTING, ENGINEERING AND TECHNOLGY

COURSEWORK 2014-2015
You must submit this report by the referred work deadline. You must show all working. Note
that this is an individual assignment.
In order to complete this part of the assignment you should refer to the laboratory sheet on SunSpace
concerning the calculation of inertia of a flywheel. You are not required to do the experiment or
write up the introductory parts of the report. However you should analyse the data provided below
as if you had obtained it by doing the experiment and write up your report accordingly.
During the course of the experiment a set of weights were hung in turn on a piece of cord from a
pulley attached to the flywheel. The objects were allowed to fall under gravity from a height of 1
metre, as described in the laboratory sheet. This was performed three times and the data recorded is
shown in the table below. The diameter of the spindle d (= 2r) was found to be 38 mm (0.038 m).
Total weight
(including hanger)
(N)
1st descent
time
(s)
2nd descent
time
(s)
3rd descent
time
(s)
3.2 29.69 34.60 34.60
6.0 24.25 24.28 25.22
8.5 19.60 19.70 19.95
11.0 17.60 17.06 17.29
13.5 15.12 15.65 15.12
Complete the following tasks:
a) The flywheel dimensions are as follows: diameter = 390mm, mean thickness = 30mm. Also, it is
made of steel, with density 7850 kg/m3. Use this information to estimate the inertia, by
considering the formula for the inertia of a solid disc. This value should be used as an
approximate validation of the inertia derived in part (b). (30%)
b) Analyse the tabulated data and use it to determine the inertia of the flywheel and the frictional
torque Tf. You should use Excel to calculate and tabulate relevant values, and to plot P? r
versus a, as per the laboratory sheet. (70%)
NB: do not confuse weight with mass (a common mistake!)

Order a unique copy of this paper
(550 words)

Approximate price: $22

Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency

Order your essay today and save 7% with the discount code DISSERT7