A vegetable cutter has an handle of $15 c m$ . A house wife uses it to cut a potato by placing it $5 c m$ from the fulcrum. If she applies an effort of $25 N$ then find the resistance offered by the potato.

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Solution

From the figure,
We balance torque $τ$ about falcrum
$\Rightarrow 25 \times 15 = 5 \times x$
$\Rightarrow x = \frac{25 \times 15}{5} = 75 N$

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A vegetable cutter has an handle of 15cm. A house wife uses it to cut a potato by placing it 5cm from the fulcrum. If she applies an effort of 25N then find the resistance offered by the potato.

From the figure,We balance torque τ about falcrum⇒25×15=5×x⇒x=25×155=75N

A vegetable cutter has an handle of $15 c m$ . A house wife uses it to cut a potato by placing it $5 c m$ from the fulcrum. If she applies an effort of $25 N$ then find the resistance offered by the potato.

From the figure,
We balance torque $τ$ about falcrum
$\Rightarrow 25 \times 15 = 5 \times x$
$\Rightarrow x = \frac{25 \times 15}{5} = 75 N$