Question

An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of 0.200 rev/s . The magnitude of the angular acceleration is 0.895 rev/s2 . Both the the angular velocity and angular acceleration are directed counterclockwise. The electric ceiling fan blades form a circle of diameter 0.780 m . (a) Compute the fan's angular velocity magnitude after time 0.209 s has passed. (b)Through how many revolutions has the blade turned in the time interval 0.209 s from Part A? (c) What is the tangential speed vt of a point on the tip of the blade at time t = 0.209 s ? (d)Calculate the magnitude at of the tangential acceleration of a point on the tip of the blade at time t = 0.209 s . (e)Calculate the magnitude ar of the radial (or centripetal) acceleration of the point at the end of the fan blade.

Answer 1