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September 18, 2014

Homework Help: college physics

Posted by Bami on Tuesday, June 8, 2010 at 10:15pm.

The flywheel of a steam engine runs with a constant angular speed of 165 rev/min.

When steam is shut off , the friction of the bearings and of the air brings the wheel to

rest in 2.30 hrs

(a) What is the constant angular acceleration of the wheel, in rev/min2 ?

(b) How many rotations will the wheel make before coming to rest?

(c) What is the tangential linear acceleration of a point 54.2 cm from the axis of

rotation when the flywheel is turning at 75.2 rev/min

(d) What is the magnitude of the total linear acceleration of the point in part (c)?

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