2. A mass of 2 kg is rotating on a circular path of
radius 0.8 m with angular velocity of 44 rad s If
the radius of the path becomes 10 m, what will
be the value of angular velocity?
(Ans. 28.16 rad s
s-1
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➪Angular movement, L= Mr^2w= constant
➪ w2/w1= ( r1/ r2)= (0.8/1)^2 = 0.64 ; w^2 = 0.64× w1
➪w2= 44×0.64= 28.16 rad / s
꧁28.16 rad / s is your answer꧂