Q
A number of forces acting at a point will be in equilibrium if_________________?
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A
A. Their total sum is zero
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B
B. Two resolved parts in two directions at right angles are equal
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C
C. Sum of resolved parts in any two per-pendicular directions are both zero
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D
D. All of them are inclined equally
Correct Answer:
C. C. Sum of resolved parts in any two per-pendicular directions are both zero
