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संबंधित प्रश्न
Is the above pulley system an ideal machine or not?
Draw a neat labelled diagram showing a pulley being used to lift a load. How are load and effort related in an ideal situation?
State if the following statement is true or false. Correct the statement if it is false.
A single movable pulley is a pulley that has its axis of rotation fixed.
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%.
In which direction does the force need to applied, when a single pulley is used with a mechanical advantage greater than one? How can you change the direction of force applied without altering its mechanical advantage? Draw a labelled diagram of the system.
Give reason for the following:
In case of a block and tackle arrangement, the mechanical advantage increases with the increase in the number of pulleys.
What is the use of a fixed pulley?
There is no gain in mechanical advantage in the case of a single fixed pulley. Explain, why the pulley is then used?
What is the relation between the mechanical advantage and the number of strands of string used to support the load, in a ‘block and tackle’ set-up?
