A) \[1.4\,m{{s}^{-1}}\]
B) \[14\,m{{s}^{-1}}\]
C) \[140\,m{{s}^{-1}}\]
D) \[280\,m{{s}^{-1}}\]
Correct Answer: B
Solution :
Maximum velocity, \[v=\sqrt{\mu rg}\] \[=\sqrt{0.2\times 100\times 10}\] \[=10\sqrt{2}=14\,m{{s}^{-1}}\]You need to login to perform this action.
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