Answer:
x= 40 cm
Explanation:
We have to place 4 nuts 10 cm away from the pivot.
Lets take mass of nut = m
Lets take single nut is place distance x from the pivot.
So the moment due to single nut = m g x
The moment due to 4 nuts = 4 m g (10)
For balancing the system these two moment should be equal
40 m g = m g x
So x = 40 cm
So we have to place a single nut at a distance of 40 cm from the pivot but on the other side.
