Trigonometry and periodic functions

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Discussion Overview

The discussion revolves around a problem involving the Singapore Flyer Ferris wheel, specifically calculating the position and height of a rider after 24 minutes of rotation. The problem incorporates concepts of trigonometry and periodic functions, particularly in relation to circular motion.

Discussion Character

  • Homework-related
  • Mathematical reasoning

Main Points Raised

  • One participant outlines that the Ferris wheel completes a full rotation in 32 minutes and starts at the 6 o'clock position.
  • Another participant calculates that after 16 minutes, the wheel reaches the top position at 165 m, and after 8 minutes, it is at a quarter turn.
  • A later reply suggests that after 24 minutes, the rider would be at the 3 o'clock position and calculates the height above the ground to be 90 m, based on the total height of the building and the height of the wheel at that position.

Areas of Agreement / Disagreement

Participants generally agree on the calculations regarding the position and height of the rider after 24 minutes, but there is no explicit consensus on the correctness of the height calculation.

Contextual Notes

The discussion does not resolve potential assumptions regarding the interpretation of the height at different positions on the Ferris wheel or the method of calculation used.

mak23
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!HELP!

The Singapore Flyer, until recently the world's largest Ferris wheel, completes one rotation every 32 minutes.1 Measuring 150 m in diameter, the Flyer is set atop a terminal building, with a total height of 165 m from the ground to the top of the wheel. When viewed from Marina Centre, it turns in the clockwise direction. State the o'clock position on the wheel and height above the ground of a person who has ridden the wheel for 24 minutes. Assume that the person boarded the wheel at the 6 o'clock position.i don't know how to do this problem.please help!and thanks in advance.
 
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mak23 said:
!HELP!

The Singapore Flyer, until recently the world's largest Ferris wheel, completes one rotation every 32 minutes.1 Measuring 150 m in diameter, the Flyer is set atop a terminal building, with a total height of 165 m from the ground to the top of the wheel. When viewed from Marina Centre, it turns in the clockwise direction. State the o'clock position on the wheel and height above the ground of a person who has ridden the wheel for 24 minutes. Assume that the person boarded the wheel at the 6 o'clock position.i don't know how to do this problem.please help!and thanks in advance.

Hi mak23! Welcome to MHB! ;)

Let's see... it starts at the bottom position (6 o'clock), and makes a full turn in 32 minutes.
That means it's at the top after 16 minutes isn't it?
And that's at 165 m from the ground.
How high would it be anyway at the starting position?
We should be able to tell, shouldn't we? Since it's given that the wheel is 150 m in diameter.

It also means that after 8 minutes, it's at a quarter of its turn.
And at 24 minutes, it's at three quarters of its turn, which is what the problem is about.
Can we tell how high that would be?
 
Thank you for the help!

I understand now.

so after 24 minutes the person should be at the 3'o clock position. And the person would be at a height of 75 m.

ahaa... since its on a building of 165 m, the person would be 165-75=90 m.Right?
 
Yep. (Nod)
 

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