# SOLUTION: Ive been struggling for days to get the answer to this question: A ferris wheel has a raidus of 20 m. Passengers get on halfway up on the right side. The direction of rotation i

Algebra ->  Algebra  -> Trigonometry-basics -> SOLUTION: Ive been struggling for days to get the answer to this question: A ferris wheel has a raidus of 20 m. Passengers get on halfway up on the right side. The direction of rotation i      Log On

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 Question 638584: Ive been struggling for days to get the answer to this question: A ferris wheel has a raidus of 20 m. Passengers get on halfway up on the right side. The direction of rotation is counter clockwise. The bottom of the ferris wheel is 2 m above ground. It rotates every 36 seconds. I had to draw it and I think that is right, but I am not sure how to determine a sine function that expresses my height. when h is a function of elapsed time t. I got h= -20sinpie/18(t)+22 And I am lost when they ask to determine my height above the ground after 15 seconds algebraically and the the nearest tenth when my height is 38 m above the ground algebraically. Please help. I can't do that following questions because I think my equation and graph is wrong! Thank youAnswer by Alan3354(30993)   (Show Source): You can put this solution on YOUR website!A ferris wheel has a raidus of 20 m. Passengers get on halfway up on the right side. The direction of rotation is counter clockwise. The bottom of the ferris wheel is 2 m above ground. It rotates every 36 seconds. I had to draw it and I think that is right, but I am not sure how to determine a sine function that expresses my height. when h is a function of elapsed time t. ------------------ The eqn of the rotation is h(t) = 20*sin(2pi*t/36) Add 2 for the ground clearance, and 20 for the center 20 m above ground. --> h(t) = 20sin(pi*t/18) + 22 t in seconds, h in meters --------------- h(15) = 20*sin(15*pi/18) + 22 = 32 meters ------------------