Question

What can you conclude if the distance you pull a pulley rope equals the distance a refrigerator is lifted off the floor?Select one:a. The force advantage of the pulley is 1.b. It takes as much force to lift the refrigerator using a pulley as it takes if you don't use the pulley.c. The effort force equals lifting force.d. All of the above.

Answer 1

As the distance of the rope = distance lifted off the floor.

Thus, here, the effort force is equal to lifting force.

The effort force is the input force and the lifting force is the output force, so the force advantage is 1.

Thus, the all of the above is the correct option