Moments and Rotation

Cards (4)

  • For an object attached to a pivot point:
    • if force applied along a line passing through pivot, object doesn't rotate, and is just held still
    • if there is a distance between the pivot and the line of action of the force, the object rotates about the pivot, in the direction of the force applied
  • What happens if the force applied is not perpendicular to the object?
    Consider the perpendicular distance from pivot to line of force
  • What is the equation for moment of a force?
    Moment of a Force = force x perpendicular distance
  • What is equilibrium?
    sum of anticlockwise moments = sum of clockwise moments