Kinematics Question 312

Question: A train of 150 meter length it’s going towards north direction at a speed of $ 10m/\sec $ . A parrot flies at the speed of $ 5m/\sec $ towards south direction parallel to the railway track. The time taken by the parrot to cross the train it’s [CBSE PMT 1992; BHU 1998]

Options:

A) 12 sec

B) 8 sec

C) 15 sec

D) 10 sec

Show Answer

Answer:

Correct Answer: D

Solution:

Relative velocity $ =10+5=15\ m/sec $
$ \therefore $ $ t=\frac{150}{15}=10\ sec $



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