A) 5 m/s
B) 8 m/s
C) 10 m/s
D) 15 m/s
Correct Answer: A
Solution :
Maximum speed\[v=\sqrt{2g({{h}_{2}}-{{h}_{1}})}\] \[=\sqrt{2\times 10\times (2-0.75)}\] \[=\sqrt{(20\times 1.25)}\] \[=\sqrt{25}=5\,m/s\]
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