Posted by **Azal** on Saturday, July 20, 2013 at 3:13pm.

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

a)Find the equation of the graph

b)predict how the graph and the equation will change if the Ferris wheel turns more slowly

c) test your predictions from part b by drawing a graph for three revolutions and finding a equation if the wheel completes one revolution every 20 s.

- trig -
**Steve**, Saturday, July 20, 2013 at 3:24pm
since sin(kt) has period 2pi/k, we have

y = 7sin(pi/8 t) + 8.5

with appropriate shift depending on where the wheel is at time 0.

slower turning means longer period, so the coefficient of t will decrease.

- trig -
**Azal - pleaseee helpp**, Saturday, July 20, 2013 at 3:30pm
why pi?

- trig -
**Steve**, Sunday, July 21, 2013 at 4:57am
set 2pi/k = 16 and solve for k.

Because the period is 16. Normally, sin(x) has period 2pi. Review your text and reread my first line.

## Answer this Question

## Related Questions

- Math - A carnival Ferris wheel with a radius of 7 m makes one complete ...
- Math (Trig) - a ferris wheel has a radius of 10m and is one meter above the ...
- Trigonometry - A carnival Ferris wheel with a radius of 7 m makes one complete ...
- calculus - Eric is standing on the ground, a distance of 70 ft from the bottom ...
- Math - need help ASAP!! Please! - The question relates to application of sine ...
- Math - The rim of the London Eye (a 135m diameter ferris wheel) moves 26 cm/sec...
- Physics - Fairgoers ride a Ferris wheel with a radius of 5.00 {\rm m} . The ...
- math - a ferris wheel has a radius of 8m and rotates every 12 hrs. THe bottom of...
- Honor Physics - Fairgoers ride a Ferris wheel with a radius of 5.00 . The wheel ...
- trig question - A Ferris wheel has a deameter of 50m. The platform at the bottom...

More Related Questions