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A body is in equilibrium under the influ...

A body is in equilibrium under the influence of a number of forces. Each has a different line of action. The minimum number of forces required is.

A

`2`, if their lines of action pass through the centre of mass of the body.

B

`3`, if their lines of action are not parallel.

C

`3`, if their line of action are parallel.

D

`4`, if their line of action are parallel and all the forces have the same magnitude.

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The correct Answer is:
B, C, D
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