Question

A fire tongs has its arms 100 cm long . It is used to lift a coal of weight 1.5 kgf by

applying an effort at a distance of 25 cm from the fulcrum. Find : (i) the mechanical

advantage of the fire tongs​

Answer 1

Answer:

Mechanical advantage is =

distance of force from fulcrum /distance of load from fulcrum

= 15 cm / (20 - 15) cm = 3

Weight of coal / Force or effort needed = 3 = mech. adv.

So effort needed = weight of coal / 3 = 1.5kgf/3 = 0.5kgf

I hope this will be help you.

Answer 2

Explanation:

here is ur answer

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