A pair of scissors has its blades 15 cm long, while its handles are 7.5 cm long. What is its mechanical advantage ?

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Solution

Step 1, Given data
Effort Arm = 7.5 cm
Load Arm = 15 cm
Step 2, Finding the mechanical advantage
We know,

Mechanical advantage $= \frac{E f f o r t a r m}{L o a d a r m} = \frac{7.5}{15} = 0.5$
The mechanical advantage of the scissors is 0.5

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A pair of scissors has its blades 15 cm long, while its handles are 7.5 cm long. What is its mechanical advantage ?

Step 1, Given dataEffort Arm = 7.5 cmLoad Arm = 15 cmStep 2, Finding the mechanical advantageWe know, Mechanical advantage =Effort armLoad arm=7.515=0.5The mechanical advantage of the scissors is 0.5

Step 1, Given data
Effort Arm = 7.5 cm
Load Arm = 15 cm
Step 2, Finding the mechanical advantage
We know,

Mechanical advantage $= \frac{E f f o r t a r m}{L o a d a r m} = \frac{7.5}{15} = 0.5$
The mechanical advantage of the scissors is 0.5