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प्रश्न
What is the mechanical advantage of an ideal pulley?
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उत्तर
In an ideal pulley, the effort applied is equal to the load to be lifted.
i.e. Effort = Load
Mechanical advantage = Load / Effort = 1
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संबंधित प्रश्न
State whether the following statement is True or False.
A pulley changes the direction of force.
Fill in the blank:
A pulley is used to change ........................
Name a machine to change the direction of force ?
Give reason for the following:
In a single fixed pulley, the velocity ratio is always more than the mechanical advantage.
What is the use of a fixed pulley?
What is a block and tackle system of pulleys?
Name the type of single pulley that can act as a force multiplier. Draw a labeled diagram of the pulley mentioned by you.
What is a block and tackle system of pulleys?
Draw the diagram of a single movable pulley and obtain its mechanical advantage, velocity ratio, and efficiency.
A block and tackle system of pulleys has a velocity ratio of 4.
- Draw a labelled diagram of the system indicating clearly the points of application and directions of load and effort.
- What is the value of the mechanical advantage of the given pulley system if it is an ideal pulley system?
