Question

21. Find the weight of half meter scale balanced 5cm mark when a weight of 10gf is suspend at one of its ends. (a) 2.5gf (b) 100gf (C) 0.2gf (d) 50gf​

Answer 1

Answer:

(a)2.5 gf

According to rotational equilibrium:

A.C.W moment= C.W moment

10×5=20×W

2.5gf=W

Also refer the image...