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प्रश्न
Classify the following as a lever, a pulley and an inclined plane:
A knife
उत्तर
A knife – An inclined plane
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.
When is work said to be done by a force?
Define the term ‘work input’ and ‘work output’ in relation to a machine.
Answer the following.
What do you understand by a complex machine?
A crowbar of length 120 cm has its fulcrum situated at a distance of 20 cm from the load. Calculate the mechanical advantage of the crowbar.
Give two examples of inclined plane where it is used to raise a heavy load with less effort ?
Define mechanical advantage (M.A.) of the machine.
Establish a relationship between efficiency, M.A., and V.R.
What is meant by simple machines?
Why is this so machines have to be maintained?
