rigid bodies Flashcards
1
Q
rigid bodies take into account…
A
rotation of the body, size of the object
2
Q
moments in equilibrium
A
clockwise moment = anti-clockwise
3
Q
what is the moment of a force
A
measures the turning effect of the force on the body on which it is acting
4
Q
moment of a force =
A
force x distance ( PERPENDICULAR DISTANCE)
5
Q
if a rigid body is in equilibrium,
A
- the resultant force in any direction = 0 , so forces up = forces down (y1)
- the resultant moment about any point is 0 ( clockwise moment = anti-clockwise moment)
6
Q
what does uniform mean?
where does weight act on a uniform body
A
- mass spread evenly
- weight acts on the centre