In the diagram below, a heavy box is being lifted. What is the function of the pulley in this situation?
A to reduce the amount of input force needed
B to change the direction of the input force
C to increase the distance over which the input force is applied
I believe the correct answer from the choices listed above is option B. The function of the pulley in this situation is to change the direction of the input force. The pulley simply turns a force in one direction into a force in another direction. Hope this answers the question. Have a nice day.
