Thursday

December 18, 2014

December 18, 2014

Posted by **Anonymous** on Sunday, November 4, 2007 at 7:31pm.

--------------

A carnival Ferris wheel with a radius of 7m makes one complete revolution every 16 seconds. The bottom of the wheel is 1.5m above the ground.

a) Draw a sketch to show a person's height (h) above the ground varies with time (t) for two revolutions, starting when the person gets onto the Ferris wheel at it lowest point.

b) Find the sine equation for the height (h) of the graph with respect to the time (t). (In radians)

--- Do I need to find the diameter for the circle in order to find the equation? And if I do, what do I do next? I don't know how to solve this problem, please help.

-------------

Answers:

b) y = 7sin pi/8 (t-4) + 8.53

- Math - need help ASAP!! Please! -
**drwls**, Sunday, November 4, 2007 at 8:02pmYou will need the radius r of the wheel to do this problem. Let A be the angle the wheel has rotated from the person's lowest point. The altitude h of the person is 1.5 + r - r cos A

h = 1.5 + 7 (1 - cos A)

Make a graph of that funtion for 0 < A < 4 pi

I don't know what you mean by the "height of the graph".

- Math - need help ASAP!! Please! -
**Anonymous**, Sunday, November 4, 2007 at 8:23pmWhat? I'm confused ...

My teacher showed us to use the period, critical intervals, max, min and mid points to graph any sine functions

I don't know where you got the "r - r cosA"

- Math - need help ASAP!! Please! -
**drwls**, Monday, November 5, 2007 at 8:02amDraw a sketch to figure out how much the person rises vertically as the angle A changes. That is what you should get. A=0 is the lowest position.

**Answer this Question**

**Related Questions**

Trigonometry - A carnival Ferris wheel with a radius of 7 m makes one complete ...

Math - A carnival Ferris wheel with a radius of 7 m makes one complete ...

trig - 1. A Ferris wheel with a radius of 7m makes one complete revolution every...

Math (Trig) - a ferris wheel has a radius of 10m and is one meter above the ...

calculus - Eric is standing on the ground, a distance of 70 ft from the bottom ...

math - A ferris wheel is 35 meters in diameter,and can be boarded at ground ...

physics - Please help with these problems. Thanks! Suppose the circumference of ...

Physics - Please help with these problems, I dont understand them. Thanks! ...

Physics - Fairgoers ride a Ferris wheel with a radius of 5.00 {\rm m} . The ...

physics - A person is riding on a Ferris wheel of radius R. He starts at the ...