state the law of moments.
Answers
Answer:
The Principle of Moments states that when a body is balanced, the total clockwise moment about a point equals the total anticlockwise moment about the same point. Equation. Moment =force F x perpendicular distance from the pivot d.
Answer:
The algebraic sum of the moments of any number of forces about Any point is equal to the moment of their resultant about the same point
PRINCIPLE OF MOMENTS - DEFINITION
If algebraic sum of moments of all the forces acting on the body about the axis of rotation is zero, the body is in equilibrium.
According to the principle of moments, in equilibrium:
Sum of anticlockwise Moments = Sum of clockwise moments
PRINCIPLE OF MOMENTS - EXAMPLE
When slightly different weights are placed on the two pans of a beam balance, the beam comes to rest at an angle with the horizontal. The beam is supported at a fixed single point by a pivot. The net torque about this fixed single point due to the two weights is nonzero at the equilibrium position. The whole system does not continue to rotate about the fixed point because the moment is balanced.
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