Thursday

August 21, 2014

August 21, 2014

Posted by **Willoby** on Tuesday, January 4, 2011 at 3:41am.

- Plane Trigonometry -
**Damon**, Tuesday, January 4, 2011 at 4:54amA revolution is 2 pi radians

So it goes w = 200 pi radians/minute

tangential speed = w r = r * 200 pi

at outside

v = 6*200 pi cm/min

at inside

v = 0.75 * 200 pi cm/min

- Plane Trigonometry -
**Willoby**, Tuesday, January 4, 2011 at 5:40amHi!Thanks for the answer. Might I ask what w represents?

- Plane Trigonometry -
**Damon**, Tuesday, January 4, 2011 at 5:44amw is Greek omega (I do not have Greek letters on my keyboard), the angular speed in radians per unit time.

- Plane Trigonometry -
**Damon**, Tuesday, January 4, 2011 at 5:47amIf you have not studied that use:

Circumference at any radius = 2 pi r

Number of circumferences per minute = 100

so at any radius r

speed = 100 * 2 pi r = 200 pi r

- Plane Trigonometry -
**Willoby**, Tuesday, January 4, 2011 at 5:53amThanks again!:)

**Related Questions**

Physic - A machine part is made from a uniform solid disk of radius R = 0.161 m ...

Physics - A machine part is made from a uniform solid disk of radius R and mass ...

physics - A curcial part of a piece of machinery starts as a flat uniform ...

physics - A 44.3-cm diameter disk rotates with a constant angular acceleration ...

physics - A 49.7-cm diameter disk rotates with a constant angular acceleration ...

physics - A thin, light string is wrapped around the rim of a 4.00kg solid ...

Physics! - The figure shows a uniform disk with a circular hole cut out of it. ...

Application problems with fractionsþ - Cheryl is fitting a turquoise stone into ...

Physics - A compact disk rotates from rest to 500 rev/min. in 5.5s. a) What is ...

physics - A 715 gram grinding wheel 29.5 {\rm cm} in diameter is in the shape of...