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प्रश्न
State one advantage of single movable pulley.
उत्तर
A single movable pulley has the advantage of increasing its mechanical advantage by acting as a force multiplier.
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संबंधित प्रश्न
What is the mechanical advantage of an ideal pulley?
Explain the working of a gear system.
What should be the gear ration of a car : equal to 1, less than 1 or greater than 1, while ascending a hill ?
Give two reasons why the efficiency of a single movable pulley system is not 100%.
Give reason for the following:
In a single fixed pulley, the velocity ratio is always more than the mechanical advantage.
The mechanical advantage of an ideal single movable pulley is ______.
Name the type of single pulley that can act as a force multiplier. Draw a labeled diagram of the pulley mentioned by you.
Give a reason for the following:
In a single fixed pulley, the velocity ratio is always more than the mechanical advantage.
Fig shown a block and tackles system of pulleys used to lift a load.
(i) How many strands of tackle are supporting the load?
(ii) Draw arrows to represent tension in each stand.
(iii) What is the mechanical advantage of the system?
(iv) When load is pulled up by a distance 1 m how far does the effort end move?
In the case of a block and tackle arrangement, the mechanical advantage increases with the number of pulleys. Explain.
