Question

how can we find the weight of meter rule by using when the ruler is pivoted at 75cm​

Answer 1

Ansfrom Equilibrium,

from Equilibrium,clockwise moment=anticlockwise moment

from Equilibrium,clockwise moment=anticlockwise momentW×15=75×g×25

from Equilibrium,clockwise moment=anticlockwise momentW×15=75×g×25m×g×15=75×g×25

from Equilibrium,clockwise moment=anticlockwise momentW×15=75×g×25m×g×15=75×g×25∴=

from Equilibrium,clockwise moment=anticlockwise momentW×15=75×g×25m×g×15=75×g×25∴= 15

from Equilibrium,clockwise moment=anticlockwise momentW×15=75×g×25m×g×15=75×g×25∴= 1575×25

from Equilibrium,clockwise moment=anticlockwise momentW×15=75×g×25m×g×15=75×g×25∴= 1575×25

from Equilibrium,clockwise moment=anticlockwise momentW×15=75×g×25m×g×15=75×g×25∴= 1575×25 =125g