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प्रश्न
Classify the following as a lever, a pulley and an inclined plane:
A crane
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उत्तर
A crane – A pulley
संबंधित प्रश्न
State whether the following statement is True or False.
In an ideal machine, work done on load is equal to the work done by effort.
Define the term ‘work input’ and ‘work output’ in relation to a machine.
What care would you take to increase the life span of a machine which you use?
show a nut cracker In the diagram, mark the position of the fulcrum F and the line of action of load L and effort E .
The diagram below shows a wheel barrow. Mark position of fulcrum F and draw arrows to show the directions of load L and effort E. What class of lever is the whell barrow? Give one more example of the same class of lever.
The correct relationship between the mechanical advantage (M.A.), the velocity ratio (V.R.) and the efficiency (n) is ______.
Define mechanical advantage (M.A.) of the machine.
What is the relationship between the mechanical advantage and the velocity ratio for:
(i) An ideal machine,
(ii) A practical machine.
Which machine will you use to do the following work? Write their type.
To remove the lid of a tin.
Why is this so traveller’s bags have wheels?
