Posted by **Confused** on Friday, October 2, 2009 at 1:05pm.

A Ferris wheel 28.0m in diameter rotates once every 21.0s.

What is the ratio of a person's apparent weight to her real weight at the top?

What is the ratio of a person's apparent weight to her real weight at the bottom?

- math -
**MathMate**, Friday, October 2, 2009 at 1:25pm
radius, r = 28/2 m =14 m

Period, T = 21 s

angular velocity, ω = 2π/21 rad/s

Centrifugal force, f= mrω²

actual weight, w = mg

apparent weight at top, wt = mg -f

apparent weight at bottom, wb = mg+f

Solve for f and calculate wt/w and wb/w.

- math -
**Otis**, Monday, October 4, 2010 at 11:46pm
so i have a question how do you solve for f if there is no m?

- math -
**matt**, Wednesday, October 27, 2010 at 9:01am
the m's cancel at some point in the equation

## Answer This Question

## Related Questions

- physic - A Ferris wheel 26.0m in diameter rotates once every 15.0s . What is the...
- physic - A Ferris wheel 26.0m in diameter rotates once every 15.0s What is the ...
- physic - A Ferris wheel 26.0m in diameter rotates once every 15.0s What is the ...
- Physics - A Ferris wheel is 60 meters in diameter and rotates once every 12.5s...
- Physics - A Ferris wheel 26.0m in diameter rotates once every 19.0s What is the ...
- Physics - A Ferris Wheel, 24.0 m in diameter, rotates once every 12.5s. What is ...
- Physics - A particular Ferris wheel takes you through one complete revolution ...
- Physics - An 80-ft-diameter Ferris wheel rotates once every 23s. What is the ...
- science - a passenger in a ferris wheel rates 3m/s in a vertical circle of ...
- Physics - A Ferris wheel, 24.0 m in diameter, rotates once every 12.5 s(see the ...

More Related Questions