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प्रश्न
Define Velocity Ratio
उत्तर
The ratio of the velocity of effort to the velocity of the load is called the velocity ratio of the machine.
It is also defined as the ratio of the displacement of effort to the displacement of the load.
Velocity Ratio (V.R.) =`"d"_"E"/"d"_"L"`
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संबंधित प्रश्न
Answer the following.
What is a machine?
State if the following statement is true or false. Correct the statement if it is false.
There are four types of simple machines.
State if the following statement is true or false. Correct the statement if it is false.
Work done by a machine is always more than the work done on a machine.
Answer the following in short.
Mention any two methods by which we can take care of machines.
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 ?
Classify the following as a lever, a pulley and an inclined plane:
Nutcrackers
Classify the following as a lever, a pulley and an inclined plane:
A crane
What is meant by simple machines?
______ help us to make work easier.
