A) 340 m
B) 320 m
C) 300 m
D) 360 m
Correct Answer: C
Solution :
[c] |
\[{{v}^{2}}={{u}^{2}}+2gh\] |
\[v=80\,m/s\] |
\[u=80\,m/s\] |
\[h=\frac{{{v}^{2}}-{{u}^{2}}}{2g}=\frac{6400-400}{20}=300\,\,m\] |
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