Two particles of masses, M1 and M2 are connected by a rigid massless rod of length R to constitute a dumbbell, which is free to move in the plane. The moment of inertia of the dumbbell about an axis perpendicular to the plane passing through the centre of mass is - VgyanHub

Question:

20.Two particles of masses, M1 and M2 are connected by a rigid massless rod of length R to constitute a dumbbell, which is free to move in the plane. The moment of inertia of the dumbbell about an axis perpendicular to the plane passing through the centre of mass is

Options :

a) m1m2r^2/m1+m2
b) (m1+m2)r^2
c) m1m2r^2/m1-m2
d) (m1-m2)r^2

Answer :

a) m1m2r^2/m1+m2

Answer Steps :

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