Question

12. 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
mechancial advantage of the fire tongs, and (ii) the
effort needed.
Ans. (i) 0.75 (ii) 2.0 kgf​

Answer 1

Answer:

MA= Load arm/Effort arm

=15÷20

= 0.75

Load × load arm= effort × effort arm

1.5× 20= effort × 15

effort = 2kgf

Thankyou..Hope it helps you

Answer 2

Answer:

hope it helps u well

Explanation:

plzzzz.....follow meee .plzzz.....