An archaeologist is attempting to pry open a heavy stone sarcophagus lid using an iron bar as a lever, as shown in the diagram below.
The stone lid exerts a downward force of 1600 N1600\text{ N}1600 N at a distance of 0.25 m0.25\text{ m}0.25 m from the pivot.
The archaeologist can apply a maximum downward force of 450 N450\text{ N}450 N at a distance of 0.80 m0.80\text{ m}0.80 m from the pivot.
The archaeologist is unable to lift the lid.
Explain, using calculations, why the archaeologist cannot lift the stone lid.
