Question

Pick the statements that hold true for a single fixed pulley.

• A. It is used as a force multiplier.
• B. It changes the direction of the effort.
• C. The length of the rope pulled is equal to the distance moved by the load.
• D. It is commonly used in drawing water from wells.

Answer 1

Answer: (B), (C), (D)

The correct options are
B It changes the direction of the effort.
C The length of the rope pulled is equal to the distance moved by the load.
D It is commonly used in drawing water from wells.

In a single fixed pulley, the load to be lifted is attached to one end of the rope, while the effort is applied to the free end of the rope. The length of the rope is equal to the distance moved by the load. A fixed pulley changes the direction of the effort. Hence, to lift the load up, we pull the rope down. A single fixed pulley is commonly used in villages to draw water from wells. However, a single fixed pulley does not act as a force multiplier.