O Question 17 (Cod. : Simu4515_e)
A metal bar 1 metre long is suspended by its centre. At 10 cm from the right end hangs a 10 kg weight, while at the other end hangs a 36 kg weight. What must you do to balance the bar and keep it in the horizontal?
A: Add to the weight hung on the right end another weight of 35 kg
B: Nothing, the bar is already balanced
C: Add to the weight hung on the left end another weight of 28 kg
D: Add to the weight hung on the left end another weight of 35 kg E: Add to the weight hung on the right end another weight of 28 kg
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