A) \[\text{(}\sqrt{\text{2}}\text{-1)m/s}\]
B) \[\sqrt{\text{2}}\,\text{m/s}\]
C) \[\frac{\text{1}}{\text{(}\sqrt{\text{2-1)}}}\text{m/s}\]
D) \[\text{2}\sqrt{2\,}\text{m/s}\]
Correct Answer: C
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