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CBSE Class 11-science Answered

An object of mass 0.4 kg is whirled in a horizontal circle of radius 2m.If it performs 60 revolutions 1/min, calculate the centripetal force acting on it.
Asked by Shanmuga Priya | 29 Sep, 2013, 06:13: PM
Expert Answer
m = 0.4 kg, r = 2 m, f = 60 rpm
Thus, angular speed is
 
Now, centripetal force is given as
Thus, substituting the values, we get
Answered by Romal Bhansali | 30 Sep, 2013, 09:46: AM
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