For a particular scissor, the length from the tip of the blade to the screw is 15 cm long and the length from the screw to the tip of the handle is 7.5 cm long.Find the mechanical advantage.

0.9

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0.3

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0.5

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1.5

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Solution

The correct option is C
0.5

Effort Arm = 7.5 cm
Load Arm = 15 cm

Mechanical advantage $= \frac{E f f o r t a r m}{L o a d a r m} = \frac{7.5}{15} = 0.5$

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