Question

5. A pair of tweezers of length 15 cm is used
the effort is applied midway between the
ends of the tweezers, what effort (in kgf)
will have to be applied to lift the ball of
to lift a ball of cotton weighing 1 g. If
cotton? [Ans.: 0.002 kgf]​

Answer 1

Answer:

Load=1.5kgf

Load arm=20cm

Effort arm=15cm

Effort =20×1.5/15=2.0kgf

The fulcrum in tongs is the joint end of the arms