A) 16 sec
B) 12 sec
C) 10 sec
D) 8 sec
Correct Answer: D
Solution :
Relative velocity \[=10+5=15\,m/s\]. Time taken by the bird to cross the train\[=\frac{120}{15}=8\sec \]You need to login to perform this action.
You will be redirected in
3 sec