Question

A uniform metre scale of weight 50 gf is balanced at 30 cm mark when weight of 80 gf and 60 gf act at 5 cm mark and 45 cm mark respectively. what force must be applied at 20 cm mark to balance the metre scale​

Answer 1

Answer:

So, → 80 gm is located at = (60+12.5) = 72.5cm on the Meter Scale.