In: Physics
The blades of a ceiling fan have a radius of 0.380 m and are rotating about a fixed axis with an angular velocity of +1.50 rad/s. When the switch on the fan is turned to a higher speed, the blades acquire an angular acceleration of +2.00 rad/s2 . After 0.500s has elapsed since the switch was reset, what is
(a) the total acceleration (in m/s) of a point on the tip of a blade and
(b) the angle φ between the total acceleration a and the centripetal acceleration ac?
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