Homework Help: math/geometry

Posted by sally on Sunday, April 11, 2010 at 4:54pm.

Jamie rides a Ferris wheel for five minutes. The diameter of the wheel is 10 meters,and its center is 6 meters above the ground. Each revolution of the wheel takes 30 seconds. Being more than 9 meters above the ground causes Jamie to suffer an anxiety attack. For
how many seconds does Jamie feel uncomfortable?

math/geometry - bobpursley, Sunday, April 11, 2010 at 5:01pm
draw a triangle from the diameter horizontal, up from the horizontal 3m to intersect the circle, then the hyp is the radius back to the center.

h=3m so 3/5 = sinTheta theta= 36.8deg

So the person is below nine meters then the bottom 180deg, and the top each side 36.8 deg, or a total of 253.7 deg, or
253.7/360 percent of the time.

time above= 5min*253.7/360

Answer this Question

Related Questions

Math - A ferris wheel is 30 meters in diameter and boarded in the six o'...
math - A ferris wheel is 35 meters in diameter,and can be boarded at ground ...
trig question - A Ferris wheel has a deameter of 50m. The platform at the bottom...
math - a ferris wheel has the diameter of 240 feet and the bottom of the ferris ...
College Algebra - A ferris wheel has a diameter of 320 feet and the bottom of ...
Math - The rim of the London Eye (a 135m diameter ferris wheel) moves 26 cm/sec...
A physics question - I was researching amusement park rides for a recent project...
differential calculus - a ferris wheel 15m in diameter makes 1 revolution every ...
Trig - A ferris wheel has a 14 meter diameter and turns counterclockwise at 6 ...
Math - Find a formula and graph the function: A ferris wheel is 20 meters in ...

For Further Reading

First Name:
School Subject:
Answer: