Levers
Definiton
Three tipes of levers
Class 3
Class 2
Class 1
A lever is a rigid bar that is used ivith a point of support or a fulcrum.
The load and the effort are on opposite sides of the fulcrum.
The effort o between the fulcrum and the load
The load is between the effort and the fulcrum
The effect of the effo t applied can be multiplied or reduced depending on where the fulc um is in relation to the load
The effect of the efforr is always reduced (d<r)
The effect of the effort is always multiplied (d<r)