Question

the blades of a pair of scissors are 20 cm long, while its handles are 10 cm long. Find its mechanical advantage.​

Answer 1

M.A = Effort arm / Load Arm

       = 7.5 / 15  

       = 1/2  

       = 0.5

Therefore Mechanical Advantage of the scissors is 0.5

Answer 2

Given that,

Effort arm of the scissor is 10 cm and the blades of a pair of scissors are 20 cm long.

To find,

Mechanical advantage of the scissors.

Solution,

The ratio of effort arm to the load arm is called mechanical advantage of any simple machine. It is given by :

$m=\dfrac{10}{20}\\\\m=0.5$

So, the mechanical advantage of the scissors is 0.5.

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Mechanical advantage

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