Question:
Which one of the following is not a movable pulley?
Which one of the following is not a movable pulley?
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Movable pulleys reduce effort by distributing the load, while fixed pulleys only change the direction of force.
Updated On: Feb 7, 2025
- Elevator
- Construction Crane
- Weight Lifting Machine
- Pulley at the Flag Pole
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The Correct Option is D
Solution and Explanation
Step 1: Understanding Movable and Fixed Pulleys
A movable pulley moves along with the load and provides a mechanical advantage by reducing the effort required to lift the load. Examples include elevators, cranes, and weightlifting machines.
Step 2: Identifying the Non-Movable Pulley
A flagpole pulley is a fixed pulley. It only changes the direction of force and does not reduce the effort needed to lift the load.
Step 3: Conclusion
Since a pulley at a flagpole does not move with the load, it is not a movable pulley.
A movable pulley moves along with the load and provides a mechanical advantage by reducing the effort required to lift the load. Examples include elevators, cranes, and weightlifting machines.
Step 2: Identifying the Non-Movable Pulley
A flagpole pulley is a fixed pulley. It only changes the direction of force and does not reduce the effort needed to lift the load.
Step 3: Conclusion
Since a pulley at a flagpole does not move with the load, it is not a movable pulley.
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