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A semicircle of radius R = 5m with diame...

A semicircle of radius R = 5m with diameter AD as shown in figure. Two particles 1 and 2 are at points A and B on shown diameter at t = 0 and move along segments AC and BC with constant speeds `u_(1)` and `u_(2)` respectively. Then the value of `(u_(1))/(u_(2))` for both particles to reach point C simultaneously will be :

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