Question

An electric fan has blades of length 30cm measured from the axis of rotation. If the fan is rotating at 120rpm, the acceleration of a point on the tip of the blade is

Answer 1

Answer:

Angular acceleration of the fan,  

Explanation:

Given that,

Length of the blades, l = 30 cm = 0.3 m

Angular speed of the fan,  

Let a is the acceleration of a point on the tip of the blade. Its expression is given by :

So, the acceleration of a point on the tip of the blade is about . Hence, this is the required solution.

Explanation:

Answer 2

Answer:

4740 ms-2

Explanation:

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