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Mechanical Engineering
MEDIUM
ENGLISH
Mechanical Engineering
According to principle of moments__________________?
A
if a system of coplanar forces is in equilibrium, then their algebraic sum is zero
Option A
if a system of coplanar forces is in equilibrium, then the algebraic sum of their moments about any point in their plane is zero
Correct answer
C
the algebraic sum of the moments of any two forces about any point is equal to moment of theiwesultant about the same point
Option C
D
positive and negative couples can be balanced
Option D
Correct answer: B
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