Question

Please give solution in paper.​

Answer 1

$\large\bf{\underbrace{\red{SOLUTION:-}}}$

☞ Let ‘w’ be the mass of metre scale acting a mid point 50cm .

▼ Clockwise moments,

= 40 × (80 – 60)

= 40 × 20

= 800gfcm …….(i)

▼ Anti-Clockwise moments,

= 5 × (60 – 10) + w × (60 – 50)

= (250 + 10 w)gfcm ……..(ii)

$\large{\underline{\purple{Now,\:Anticlockwise\:moment\:=\:clock\:wise\:moment\:}}}$

=> 250+ 10w = 800

=> 10w = 800 - 250

=> w = 550/10

$\checkmark\:\sf{\underline{\blue{\boxed{\implies\:w\:=\:55\:gf.\:}}}}$