what is the new angular velocity in rpm?
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9-
Angular momentum of the merry go round will be conserved in rotation motion.
initial angular momentum = final angular momentum
angular momentum is given as
L =
where I is moment of inertia and is angular velocity
Ii = If
Ii = Moment of inertia of merry go round + moment of inertia of three children
Ii = Im + (m1+m2+m3)r2
IF= Im + (m1+m2)r2 + m3x0 ( m3 is at center)
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