A) \[4\,m\,{{s}^{-1}}\]
B) \[5\,m\,{{s}^{-1}}\]
C) \[200\,m\,{{s}^{-1}}\]
D) \[1600\,m\,{{s}^{-1}}\]
Correct Answer: B
Solution :
\[Speed=\frac{Dis\tan ce}{Time}=\frac{800}{160}=5\,m\,{{s}^{-1}}\]
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