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April 21, 2014

April 21, 2014

Posted by **DMITRIC** on Sunday, March 6, 2011 at 9:39pm.

WHAT IS THE VALUE OF WO IN RAD/S?

94.2 RAD/S

WHAT IS THE SIZE OF THE DISPLACEMENT, TEITA, IN RADIANS?

WHAT IS THE SIZE OF THE ANGULAR ACCELERATION EXPERIENCED?

HOW LONG DID IT TAKE FOR THE SAW BLADE TO COME TO REST?

- PHYSICS -
**Damon**, Sunday, March 6, 2011 at 9:57pm15*2 pi = 30 pi = 94.2 sure enough

average w during stop = wo/2 = 47.1 or 7.5 rev/s

time to stop = 125/7.5 = 16.7 seconds

w = wo + a t

0 = 94.2 + a (16.7)

so

a = -5.65 rad/s^2

so

theta = wo t + (1/2) a t^2

= 94.2 (16.7) - 2.83 * 16.7^2

1573 - 789

= 784 radians

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