Question: A balance has pans of unequal weight and arms of unequal length. A body is weighted by such a beam b...

Question

A balance has pans of unequal weight and arms of unequal length. A body is weighted by such a beam balance. The beam is balanced with body in one pan and 8 kg weight in other pan. When pans are interchanged beam is balanced by 18 kg weight in other pan. The correct mass of body is –

Answer 1

Solution

m = $\sqrt { 8 \times 18 }$ = $\sqrt { 144 }$ = 12 kg