An electric fan has blades of length 30 cm measured from the axew of rotation .If yhe fan is rotating at 120 rpm,find the accerleration of a point on the tip of the blade
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Answer:
An electric fan has blades of length 30cm as measured from the axis of rotation. If the fan is rotating at 1200r±, find the acceleration of a point on the tip of a blade. ac=ω2r=(40π)2×30100=480π2ms-2.
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1
1 rpm =
30
π
rads
−1
so ω=1200×
30
π
=40πrads −1
acceleration of the point at the tip =ω 2
r=(40π)2=30/100
and the closest answer is 4740ms −2
.
30
π
rads
−1
so ω=1200×
30
π
=40πrads −1
acceleration of the point at the tip =ω 2
r=(40π)2=30/100
and the closest answer is 4740ms −2
.
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