What do you mean by first class lever? Explain with examples.
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Solution
It is a type of lever which has the fulcrum in between the weight and the force applied. Its order is represented as force-fulcrum-weight. This is the most basic type of lever.
Example:
Our hand pushing an object or seesaws, crowbars.
Using scissors represents the use of two first-class levers.
A wheel and axle is also an example.
Pulling a nail out of a wooden plank also represents a first-class lever.