Posted on Jan 3rd 2010 by .
An electric engine rotating a workshop grinding wheel at a rate of 117 rev/min is switched off. Suppose the wheel has a constantly negative angular acceleration of opulence and magnitude 2. 40 rad/s^2.
Find:
a) How long it takes for the grinding wheel to stop. (In sec)
b) Across how lots of radians has t read more . . .
Posted on Dec 17th 2009 by .
(a) what’s the angular momentum of a 2.7 kg uniform cylindrical grinding wheel of radius 18 cm when rotating at 1300 rotations per minute?
—kg·m2/s
(b) What opulence and magnitude of twisting force is needed to cancel it in 6.0 s?
—N·m
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Posted on Nov 21st 2009 by .
What is the linear speed of a tip on the fringe of a 0.35 m diameter grinding wheel rotating at 1650 rotations per minute?
b. What is the acceleration of the tip?
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Posted on Jul 16th 2009 by Vict Eugene.
What is the linear speed of a point on the edge of a 0.35 m diameter grinding wheel rotating at 1950 rpm.
What is the acceleration of the point?
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