A) \[4\frac{4}{5}\text{s}\]
B) \[9\frac{1}{5}\text{s}\]
C) \[7\,\,\text{s}\]
D) \[14\,\,\text{s}\]
Correct Answer: D
Solution :
Speed\[=90\,\,\text{km/h}=90\times \frac{5}{18}=25\,\,\text{m/s}\] Distance covered \[=230+120=350\,\,\text{m}\] \[\therefore \] Time taken\[=\frac{350}{25}\] \[=14\text{ s}\]You need to login to perform this action.
You will be redirected in
3 sec