title: Physics required to make a basic weighing scale?
body: <p>Okay so I need to make a basic activity (working Flash/as3) that simulates very basic weighing scales. All the objects that go on to the scales are the same weight.</p>
  
  <p>If you imagine the classic weighing scales (http://www.metalminnie.co.uk/mm1/scales-S1055936773790.JPG) - we are dragging/dropping stuff on to the sides and animating accordingly.</p>
  
  <p>I don't want anything fancy, just the maths required to affect the scales according to how many objects are on each side.</p>
  
  <p>What I'm looking for is probably the angle of rotation of the horizontal arm. Any pointers?</p>