A uniform metre scale is put on a wedge at the 40 cm mark. It is found that this scale gets balanced when a weight of 10gf is suspended from the 25 cm mark . Find the weight of the metre scale
Answers
Answered by
0
acts at 50 cm mark.
Taking moments about to cm mark.
Moment in clockwise direction,
= W x 10 cm + 5 gf x 35 cm
= 10 W cm + 175 cm gf cm.
Moment in anti-clockwise direction, = 20gf x 35 cm = 700 gf cm.
By the law of moments,
Moments in clockwise direction = Moments in anti-clockwise direction.
10 W cm + 175 gf cm = 700 gf cm
∴ 10 W cm = (700 - 175) gf cm
∴ W = 525/10 gf = 52.5 gf.
Similar questions