turning effect of forces (moments) Flashcards
1
Q
moment
A
the product of the force F and the perpendicular distance d from the pivot to the line of action of the force
2
Q
principle of moments
A
when an object is in rotational equilibrium, the sum of clockwise moments about a pivot is equals to the sum of anticlockwise moments about the same pivot
3
Q
centre of gravity
A
the point through which an object’s whole weight appears to act
4
Q
stability
A
measure of an object’s ability to return to its original position after it is slightly displaced
