Question
Sun September 29, 2013 By: Shanmuga Priya
 

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.

Expert Reply
Romal Bhansali
Mon September 30, 2013
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
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