Trig question confused

1. Jan 27, 2005

ziddy83

hey whats up guys...i was trying to figure out this problem, but...I just cant see to get how to start. If someone can help me...that would be really nice. Its number 2 on this link... http://success.shoreline.edu/SarahLeyden/Classes/Current/Math%20120/Synthesizers/Synthesizer%202.pdf [Broken]

Last edited by a moderator: May 1, 2017
2. Jan 27, 2005

vincentchan

this is not a trig question.....
you don't need the 2 inches and 4 inches thing in your calculation. the reason they were there is to confuse you...

3. Jan 27, 2005

learningphysics

When the 4in wheel turns one revolution, how many revolutions does the 2in wheel turn? Can you figure out this relationship?

4. Jan 27, 2005

vincentchan

sorry... ignore what i just said... I misunderstood the question

5. Jan 28, 2005

ziddy83

hm.. still don't get it

I understand that for every 1 pedal, the 2in circle goes 2 revolutions. How do I figure out the speed from this?.. I'm stuck/confused..

6. Jan 28, 2005

learningphysics

Do you know the number of revolutions of the 14in wheel now?

What is distance is travelled per revolution of the 14in wheel?