1.

A fire tongs has its arms 20 cm long. It is used to lift a coal of weight 1.5 kgf by applying an effort at a distance of 15 cm from the fulcrum. Find : (i) the mechanical advantage of the togns, and (ii) the effort needed.

Answer»


ANSWER :(i) 0.75
(II) 2.0 KGF.


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