# physics

The blades of a ceiling fan have a radius of 0.340m and are rotating about a fixed axis with an intial angular velocity of +1.25rad/s2. When the switch on the fan is turned to a higher speed, the blades acire an angular acceleration of +2.55rad/s2. After 0.480s have elapsed since the switch was reset, what are
A) the magnitude of the total acceleration (in m/s2)of a poit on the tip of a blade, and
B) the angle theta between the total acceleration, a, and the centripetal accleration, ac?

1. 👍 0
2. 👎 0
3. 👁 133

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