11 4 + BIUA #Q- =- £ - 5 6 length, and the centre of their circular motion is a point 23 m above lutions per minute when in operation. (Hint: Draw a rough sketch (A/2+/2 +/1) 2-1 O • ?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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12. A Dutch windmill has blades that are 20 m in length, and the centre of their circular motion is a point 23 m above
the ground. The blades have a frequency of 4 revolutions per minute when in operation. (Hint: Draw a rough sketch
of the scenario first to understand the problem) (A/2+/2 +/1)
- 13
7-8
a) Use a sinusoidal function to model the height above the ground of the tip of one blade as a function
of time.
b) Graph the function over two complete cycles.
c) How far off the ground is the tip of the blade at 10 s?
I
***
€
31
D.
a
Transcribed Image Text:100% - Normal text 7 Calibri 2 11 4 + B IU A 2 SEEY 12. A Dutch windmill has blades that are 20 m in length, and the centre of their circular motion is a point 23 m above the ground. The blades have a frequency of 4 revolutions per minute when in operation. (Hint: Draw a rough sketch of the scenario first to understand the problem) (A/2+/2 +/1) - 13 7-8 a) Use a sinusoidal function to model the height above the ground of the tip of one blade as a function of time. b) Graph the function over two complete cycles. c) How far off the ground is the tip of the blade at 10 s? I *** € 31 D. a
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