Question

state the principal of lever
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Answer 1

Answer:

A lever is a simple machine which consists of a rigid bar which is free to turn about a fixed point called fulcrum. The principle of lever is, the nearer the fulcrum to the weight to be moved, the easier it is to shift, the farther from the fulcrum, the more difficult.

Answer 2

$\large\mathsf{\red{\underline{\underline{ Lever}}}}$

$\textsf{A lever is a simple machine which}$ $\textsf{consists of a rigid bar which is }$ $\textsf{free to turn about a fixed point called}$ $\bf\textsf{fulcrum.}$

$\large\mathsf{\red{\underline{\underline{Principal~ Of~ Lever}}}}$

$\textsf{It states that 'the moments of load}$$\textsf{ about the fulcrum is equal to the }$$\textsf{moments of the effort about the effort}$$\textsf{arm"which is equal to "anticlockwise}$$\textsf{ moment = clockwise moment"}$