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Two particles starts simultaneously from a point `O` and move along line `OP` and `OQ`, one with a uniform velocity `10m//s` and other from rest with a constant acceleration `5m//s^(2)` respectively. Line `OP` makes an angle `37^(@)` with the line `OQ`. Find the time at which they appear to each other moving at minimum speed?

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The correct Answer is:
t=1.6 s
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