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प्रश्न
Name a machine to change the direction of force ?
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उत्तर
To change the direction of force: a single fixed pulley is used to lift a bucket full of water from the well by applying the effort in the downward direction instead of applying it upwards when the bucket is lifted up without the use of pulley.
संबंधित प्रश्न
Fill in the blank:
A pulley is used to change ........................
Select the correct alternative:
A pulley is used because of it
The mechanical advantage of an actual pulley is less than one. Give a reason. What is the justification for using the pulley then?
Define the following term in reference to a gear system of Driving gear ?
Define the following term in reference to a gear system for Driven gear ?
Give two reasons why the efficiency of a single movable pulley system is not 100%.
Name the type of single pulley that can act as a force multiplier. Draw a labeled diagram of the pulley mentioned by you.
State two reasons, why the efficiency of a pulley system is not 100 percent?
A man raises a load of 360 kgf using a block and tackle system of 3 pulleys. If the efficiency of the pulley system is 60%, what effort is applied by the man?
A pulley is a machine made up of a ______.
