Lesson 2: Moments and Couples Flashcards
1
Q
What is a moment?
A
A moment is the rotational effect of a force about a point or axis.
2
Q
What is the formula for a moment?
A
M=FĂd
Where:
đ= Moment (Nm)
đš= Force (N)
đ= Perpendicular distance to the axis (m)
3
Q
What is the principle of moments?
A
The sum of moments about a point is zero for a system in equilibrium.
4
Q
What is a couple moment?
A
A pair of equal and opposite forces separated by a distance, creating pure rotation.
5
Q
How is the moment of a couple calculated?
A
M=FĂd
Where đ is the perpendicular distance between forces.
