Please help with the question above. Several objects andnut/clip units are arran

Question

Please help with the question above.

Several objects andnut/clip units are arranged on a balance such that it balances. (The balance was balanced before the objects w-ere placed on it.) The black sphere on the right side has a mass of 4 nut/clip units. The sphere is moved 4 holes to the left (i.e., such that it is hanging one hole to the left of the fulcrum), and a new group of 2 nut/clip units is then hung at a single location in order to restore balance. Determine that location. Explain your reasoning.

Explanation / Answer

this total change in trrque must be provided by new group

So change is 4*3 + 4*1 = 2*x

=> x = 16/2 = 8 unit

So location will be 2nd hole from right. because this is at 8 unit distance balancing point which we get from above calculations.

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