A physical balance has its arms of length 60 cm and 40 cm. what weight

1.	A physical balance has its arms of length 60 cm and 40 cm. what weight kept on pan of longer arm will balance an object of weight 100 gf kept on other pan?
Answer» From the principle of moments, Anticlockwise moment = Clockwise moment 100 gf × 40 cm = W × 60 cm So, weight on the longer pan , W = 100gf x 40cm/60 = 200gf/3 = 66.67 gf

A physical balance has its arms of length 60 cm and 40 cm. what weight kept on pan of longer arm will balance an object of weight 100 gf kept on other pan?

Answer»

From the principle of moments,

Anticlockwise moment = Clockwise moment

100 gf × 40 cm = W × 60 cm

So, weight on the longer pan ,

W = 100gf x 40cm/60 = 200gf/3 = 66.67 gf