A disturbing mass m1 attached to the rotating shaft may be balanced by a single mass m 2 attached in the same plane of rotation as that of m 1 , such that (where r 1 and r 2 are the radii of rotation of m 1 and m 2 respectively)

A disturbing mass m1 attached to the rotating shaft may be balanced by

1.	A disturbing mass m1 attached to the rotating shaft may be balanced by a single mass m 2 attached in the same plane of rotation as that of m 1 , such that (where r 1 and r 2 are the radii of rotation of m 1 and m 2 respectively)
A.	m 1 r 2 = m 2 r 1
B.	m 1 r 1 = m 2 r 2
C.	m 1 m 2 = r 1 r 2
D.	none of these
Answer» C. m 1 m 2 = r 1 r 2

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A disturbing mass m1 attached to the rotating shaft may be balanced by a single mass m 2 attached in the same plane of rotation as that of m 1 , such that (where r 1 and r 2 are the radii of rotation of m 1 and m 2 respectively)

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