SOLUTION: A group of teenagers near a wind turbine decide to place a pair of pink shoes on the tip of one blade. They notice that the shoes are at its maximum height of 16 meters at t=10 sec

Algebra.Com
Question 1117301: A group of teenagers near a wind turbine decide to place a pair of pink shoes on the tip of one blade. They notice that the shoes are at its maximum height of 16 meters at t=10 seconds and its minimum height of 2 meters at t=25 seconds. Determine the equation.
a) Determine the height at exactly 10 minutes.
b) Later in the day, the wind speed increased and it now takes half the time for the wind turbine to complete one revolution. Rewrite your equation to account for this change.

Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
A group of teenagers near a wind turbine decide to place a pair of pink shoes on the tip of one blade. They notice that the shoes are at its maximum height of 16 meters at t=10 seconds and its minimum height of 2 meters at t=25 seconds. Determine the equation.
---
Amplitude = (16-2)/2 = 7
Vertical shift = 7+2 = 9
Period = 2*(25-10) = 30 seconds
f(t) = 7sin(t*pi/15) + 9
-------------
a) Determine the height at exactly 10 minutes.
t = 600 seconds
f(t) = 12.808 meters
-----------------------
b) Later in the day, the wind speed increased and it now takes half the time for the wind turbine to complete one revolution. Rewrite your equation to account for this change.
f(t) = 7sin(t*2*pi/15) + 9

RELATED QUESTIONS

A group of patriotic protesters near a wind turbine decide to place a flag on the tip of... (answered by ikleyn,greenestamps)
A blade on a water turbine turns 240˚ in 1.25 s. Find the linear speed of a point on (answered by Alan3354)
If the angle between each blade of the wind turbine is the same and each blade has a... (answered by Alan3354)
The blades on a model windmill take 4 seconds to make a full rotation. At the lowest... (answered by stanbon)
A wind turbine has a total height of 50m, with 3 equally spaced blades that are 16m in... (answered by Alan3354)
How far does a point on the tip of a rotor blade travel when it makes one complete... (answered by Theo)
In order to produce the electricity we use in our homes, a utility scale wind turbine... (answered by ankor@dixie-net.com)
No wind energy "farms" use large wind turbines to generate electricity from the wind. At... (answered by Alan3354)
A helicopter blade is 2.75 m long and is rotating at 420 rpm. What is the linear velocity (answered by Fombitz)