Saturday

April 18, 2015

April 18, 2015

Posted by **Daisy** on Sunday, September 23, 2012 at 12:26pm.

inch diameter blade that rotates at 4400 revolutions per minute.

a)Find the angular speed of the saw blade in radians per minute.

b)Find the linear speed in feet per minute of one of the 24 cutting teeth as they contact the wood being cut.

I'd appreciate any help on this problem. I have 5 more like it, so I really just want to know how to go about it so I can do the rest. Thanks!

- TRIG -
**Reiny**, Sunday, September 23, 2012 at 2:41pma) one rotation = 2π radians

so 4400 rpm = 2π(4400) radians/min

= 8800π rad/min

= appr 27646 rad/min

b) one rotation = 2π(8.5) inches

= 17π inches

so 4400 rotations would be 17π(4400) inches

= 74800π

so the linear speed of a tooth = 74800π inches/min

**Answer this Question**

**Related Questions**

Trig - A 7.25 inch circular saw blade rotates at 5200 revolutions per minute. a...

Trig Circular Motion - A es004-1.jpginch circular saw blade rotates at 5200 ...

math - Assuming that a table saw blade has a diameter of 12 inches and spins at ...

precalc - A celing fan with 16 inch blades rotates at 45 revolutions per minute...

math - Assuming that a table saw blade has a diameter of 12 inches and spins at ...

Trig - A carousel with a 50-foot diameter makes 4 revolutions per minute. a) ...

math - Assuming that a table saw blade has a diameter of 12 inches and spins at ...

physics - An electric saw uses a circular spinning blade to slice through wood. ...

trigonometry - A wheel with a 15-inch diameter is turning at the rate of 60 ...

Pre-calc - A car is moving at the rate of 60 miles per hour, and the diameter of...