Question

What is the ideal mechanical advantage of a single fixed pulley? Can it be used as a force multiplier?
A. 1.5 , Yes
B. 1.5 , No
C. 1 , Yes
D. 1 , No

Answer 1

Hint: As we will explain the mechanical advantage of a single fixed pulley, we will compare the effort force of a pulley and the load force of a pulley. If both the forces are equal that means the ideal mechanical advantage will be 1.

Complete step by step answer:
A single fixed pulley has an ideal mechanical advantage of 1 since the effort force is equal to the load force. No, it cannot be used as a force multiplier, instead, it is used to change the direction of force applied. A single fixed real pulley has a mechanical advantage of less than one. There is a change in force direction, and some work is done to overcome the friction in the pulley. As a result, the force required to draw the rope from your end will be greater than the force required from the other end.

The axle is the pulley's rotational axis. In the ideal condition, a movable pulley has a mechanical advantage of 2. As a result, a moveable pulley is one that does not have a fixed rotation axis. It has a mechanical advantage of 2 in the ideal case.The ideal mechanical advantage for a single moveable pulley is 2. It has a velocity ratio of two. As a force multiplier, it is employed. The direction of load is the same as the direction of effort.

Hence, the correct option is D.

Note: The effort required by an ideal single fixed pulley is equal to the load itself, resulting in a mechanical advantage of one. A single fixed pulley cannot be utilised as a force multiplier because the amount of effort required is equal to the load itself.