The blades of a windmill turn on an axis that is 30 feet from the ground. The blades are 10 feet long and complete two rotations
every minute.
Write a sine model, y = asin(bt) + k, for the hight (in feet) of the end of one blade as a function of time t (in seconds). assume the blade is pointing to the right when t = 0 and that the windmill turns counterclockwise at a constant rate.
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Write a sine model, y = asin(bt) + k, for the hight (in feet) of the end of one blade as a function of time t (in seconds). assume the blade is pointing to the right when t = 0 and that the windmill turns counterclockwise at a constant rate.
Options are displayed in the picture
1 answer:
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Answer:
Step-by-step explanation:
Sin 21 =
Sin 21 =
0.3583 =
0.3583*15 = BC
BC = 5.3745 = 5.37 m
Tan ∅ =
Tan ∅ =
∅ = tan⁻¹ (0.7448) = 36.67 = 36.7
