1) what type of lever is the bucket on the dragline excavator attached to? where is its fulcrum?2) identify any pulley systems in dragline excavator. What are their functions3) the bucket of a power shovel is smaller than that on a dragline excavator. Why?4)what types of levers can you see in the power shovel? where are their fulcrums?5) since the load in the bucket requires so much engine power, why don't the engineers include many more pulleys? (Hint: consider the force acting between each cable and the surface of each pulley).6)
