A) \[1s\]
B) \[2s\]
C) \[3s\]
D) \[4s\]
Correct Answer: B
Solution :
\[{{h}_{1}}=\frac{1}{2}g{{t}^{2}}\], \[{{h}_{2}}=50t-\frac{1}{2}g{{t}^{2}}\] Given \[{{h}_{1}}+{{h}_{2}}=100m\] Þ \[50t=100\Rightarrow t=2\ \sec \]You need to login to perform this action.
You will be redirected in
3 sec