Question

A cook uses the fire tongs 28 cm to lift a piece of burning coal of mass 250 grams. If he applies the effort at a distance of 7 cm from the fulcrum, find the effort.

{Take g = 10 ms^-2}

Answer 1

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F. E. L

<-------------------------28cm------------------>



by the principal of lever ,we have .

effort×effort arm= load × load arm .

effort ×7=250 gf × 28=>
effort 1000gf= 1kgf =10 N.

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