Theory of Machine
Which one of the following can completely balance several masses revolving in different planes on a shaft?

A single mass in different planes
Two equal masses in any two planes
A single mass in one of the planes of the revolving masses
Two masses in any two planes

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Theory of Machine
Inertia force acts

None of the listed here
Opposite to the direction of acceleration force
Along the direction of acceleration force
Perpendicular to the acceleration force

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