A) 2.5 m/sec
B) 4.5 m/sec
C) 6.5 m/sec
D) 8.5 m/sec
Correct Answer: D
Solution :
\[\frac{{{v}^{2}}}{rg}=\frac{h}{l}\]Þ\[v=\sqrt{\frac{rgh}{l}}\]\[=\sqrt{\frac{50\times 1.5\times 9.8}{10}}=8.57\,m/s\]You need to login to perform this action.
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