A) \[\sqrt{2}\,t\]
B) \[\left( 1+\frac{1}{\sqrt{2}} \right)t\]
C) \[\frac{3\,t}{2}\]
D) \[\frac{t}{\sqrt{2}}\]
Correct Answer: B
Solution :
\[t'\,\sqrt{\frac{2\left( \frac{h}{2} \right)}{g}}=\,\,\sqrt{\frac{h}{g}}=\,\sqrt{\left( \frac{\frac{1}{2}g{{t}^{2}}}{g} \right)}\,=\frac{t}{\sqrt{2}}\] Required time \[=t+t'\,=t+\frac{t}{\sqrt{2}}=t\left( 1+\frac{1}{\sqrt{2}} \right)\]You need to login to perform this action.
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