How a Hydraulic Jack Helped Neil Move a Heavy Pallet

How did the hydraulic jack help Neil move the pallet?

A. It decreased the force of gravity on the pallet.

B. In increased the force he could use to push the pallet.

C. It decreased the distance over which he had to move the pallet.

D. It increased the force he could use to lift the pallet.

Answer:

The hydraulic jack increased the force Neil could apply to lift the pallet by transforming a small force into a much larger one.
Final answer: The hydraulic jack increased the force Neil could apply to lift the pallet.

How did the hydraulic jack help Neil do his job? The correct answer is D. It increased the force he could use to lift the pallet. A hydraulic jack consists of an incompressible fluid within a U-tube that has movable pistons on each side. When Neil applied a force by pumping the handle, it increased the force on the larger area side, enabling him to lift the heavy pallet with less effort. This is because a hydraulic system allows a small force applied over a small area to be transformed into a much larger force over a larger area, making it easier to lift heavy loads.