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प्रश्न
Copy and complete the labelled diagram connecting the two pulleys with a tackle to obtain Velocity Ratio= 2.
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उत्तर
Here, velocity ratio = n (number of pulleys)
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संबंधित प्रश्न
Draw a diagram of a block and tackle system of pulleys having a velocity ratio of 5. In your diagram indicate clearly the points of application and the directions of the load L and effort E. Also mark the tension T in each strand.
The velocity ratio of a single movable pulley is always 2.
The velocity ratio of a combination of n movable pulleys with a fixed pulley is always 2n.
The velocity ratio of a block and tackle system is always equal to the number of strands of the tackle supporting the load.
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- What minimum weight placed on this metre ruler can balance this ruler when it is pivoted at its centre?
If Load = 48 kgf and efficiency is 80% then calculate:
- Mechanical Advantage.
- Effort needed to lift the load.
The adjacent diagram shows the movable block of a block and tackle system with effort in a convenient direction. From the diagram we can conclude that the number of pulleys used in the fixed block are ______.
In a block and tackle system, increase in the weight of the movable block ______ the efficiency of the pulley system.
