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प्रश्न
Name a machine which is used to:
change the direction of force applied.
उत्तर
A pulley is used to change the direction of application of force.
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संबंधित प्रश्न
Fill in the blank:
A pulley is used to change ........................
What is the justification for using the pulley then ?
Define the following term in reference to a gear system for Driven gear ?
What is a block and tackle system of pulleys?
What is a block and tackle system of pulleys?
Write two uses of pulleys. Is pulley a force multiplier?
There is no gain in mechanical advantage in the case of a single fixed pulley. Explain, why the pulley is then used?
The pulley system shown in the figure is to be used to lift a load W. If the man applying the effort cannot apply a force exceeding 1000 N, what is the maximum load that can be lifted?
The actual load that the man is finally able to lift turns out to be 2700 N. What are the values of the actual M.A., obtained, and the efficiency of the actual set-up?
A block and tackle system of pulleys has velocity ratio 4.
- Draw a labelled diagram of the system indicating clearly, the direction of the load and effort.
- Calculate the potential energy of the load 100 kgf lifted by this pulley to a height 5 m. (g = 10 ms-2)
