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2.
The number of revolutions of
an electric motor observed at one minute intervals is as
follows:
1st min 2nd min 3rd min 4th min
1500 1200 960 768
i)
How many revolutions woul
d be made during the 5th minute?
ii)
How many revolutions woul
d be made during the 10th minute?
iii)
**After what interval would the number
of revolutions be less than 100rpm?
iv)
What total number of revolutions made after the 16th
minute?
v)
**How long would it take for the total num
ber of revolutions to exceed 7400?
vi)
How many revolutions would the motor
take to come to stand still?
** -Requires the use of logarithms
tnx so much for da help bobbym
dont mean to bother u but im just a bit confused at to parts
1. I can work stuff synthetically but Im not sure how you came up with that answer
so if u cud expound on dat part a bit that wud be great.
2. Also did u use crammer's rule for the 3 simultaneous equations? Im asking because I cant remember working a 3 simultaneous question with fractions.
Tnx again Im gon see if I can work at this as soon as as Im done typing this.
please help
forgot how to work this stuff lol
x^3 - x^2 - 3x +5
_______________
(x^2 - 5x + 6) (x-1)
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