Some physics Question?

Posted on 2015-10-21 06:50:00 in Physics by JANICE

An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of 0.240 rev/s. The magnitude of the angular acceleration is 0.908 rev/s^2. Both the the angular velocity and angular acceleration are directed clockwise. The electric ceiling fan blades form a circle of diameter 0.770 m.

I have found both Part A and Part B

A) Compute the fan's angular velocity magnitude after time 0.196 s has passed.

B) Through how many revolutions has the blade turned in the time interval 0.196 s from Part A?

C) What is the tangential speed vtan(t) of a point on the tip of the blade at time t = 0.196 s ?

D) What is the magnitude a of the resultant acceleration of a point on the tip of the blade at time t = 0.196 s ?

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