WAEC - Physics (2014 - No. 10)

The diagram above illustrates a uniform metre rule which is balanced on a pivot by some masses. Calculate the value of M

500.0g

400.0g

44.4g

25.0g

clockwise moment = Anti-clock wise moment

= M x 40 = 100 x 10

M = \(\frac{1000}{40}\)

= 25g