A) \[10m/s\]
B) \[7m/s\]
C) \[12m/s\]
D) \[\frac{2v(n-1)}{n}\]
Correct Answer: A
Solution :
We have \[{{327}^{o}}C\] \[{{427}^{o}}C\] and \[{{27}^{o}}C\] (u = required velocity) (\[0.52\] t=2s) \[0.31\]
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