Statics Flashcards
1
Q
what is moment
A
force * perpendicular distance from pivot point to line of action of force.
unit = Nm
2
Q
what is principle of moments
A
in equilibrium, sum of clockwise moments around of point = the sum of the anticlockwise moments about the point
3
Q
what is a centre of mass
A
the point where all mass of an object can be considered to act
4
Q
what is a couple
A
when 2 forces of equal size act about a common centre, they form a couple, no resultant force, only turning
