Q10 of 30 Page 127

Determine the balance point of the bridge above if X and Y are interchanged.

When X and Y gets interchanged then l1 and 100-l1 gets interchanged.

Now the balance point of bridge will be 100-l1 from A


100-l1 = 100-39.5 = 60.5cm


Hence the balance point is 60.5cm from A.


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