A tong has its arms 20 cm long. It is used to lift coal of weight 1.5 kgf by applying an effort at distance 15 cm from the fulcrum. The mechanical advantage is.

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0.25

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0.75

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Solution

The correct option is D 0.75
Effort arm = 15 cm

Load arm = 20 cm

Mechanical Advantage = $\frac{E f f o r t a r m}{L o a d a r m}$

= $\frac{15}{20}$ = $\frac{3}{4}$ = 0.75

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A tong has its arms 20 cm long. It is used to lift coal of weight 1.5 kgf by applying an effort at distance 15 cm from the fulcrum. The mechanical advantage is.

The correct option is D 0.75Effort arm = 15 cm Load arm = 20 cm Mechanical Advantage = Effort armLoad arm = 1520 =34 = 0.75

The correct option is D 0.75
Effort arm = 15 cm

Load arm = 20 cm

Mechanical Advantage = $\frac{E f f o r t a r m}{L o a d a r m}$

= $\frac{15}{20}$ = $\frac{3}{4}$ = 0.75