A) \[\frac{3{{u}^{2}}}{g}\]
B) \[\frac{4{{u}^{2}}}{g}\]
C) \[\frac{6{{u}^{2}}}{g}\]
D) \[\frac{9{{u}^{2}}}{g}\]
Correct Answer: B
Solution :
[b] \[{{v}^{2}}-{{u}^{2}}=2a\,\,S\] or \[{{\left( 3u \right)}^{2}}-{{u}^{2}}=2\left( -g \right)H\] or \[9\text{ }{{u}^{2}}-{{u}^{2}}=-2g\text{ }H\] or H \[=\frac{4{{u}^{2}}}{g}\]You need to login to perform this action.
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