A uniform metre rule of mass 120g suspended at its mid point from a spring balance, which is calibrated in newtown,has a stone, suspended at the 20cm mark, balanced by a 100g mass suspended on the 60cm mark. what is the reading on the spring balance?
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Answer:
hey mate
Explanation:
Brainly.in
What is your question?
1
Secondary School Physics 5 points
A uniform metre rule is pivoted at its midpoint.A weight of 50 gf is suspended at one end of it. Where should a weight of 100 gf be suspended to keep the rule horizontal?
Ask for details Follow Report by Sayansahu 06.04.2018
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THE BRAINLIEST ANSWER!
Hi.
Here is your answer----
Diagram of your question is----
Units are in cm
-----------------------------------50cm---------------------------------------
weight is 50 gf
According to the principle of moments----
Sum of clockwise moments = Sum of Anticlockwise moments
50 x 50 = d x 100
d = 5 x 5
d = 25 cm
Thus, the weight must be suspended on the 25 cm mark to keep the meter rule in equilibrium.
Hope it will help u.
Have a nice day.