A train of $150 $ meter length is going towards north direction at a speed of $10m/\sec $. A parrot flies at the speed of $5\,\,m/\sec $ towards south direction parallel to the railway track. The time taken by the parrot to cross the train is........$sec$
$12$
$8$
$15 $
$10 $
A train of $150 $ meter length is going towards north direction at a speed of $10m/\sec $. A parrot flies at the speed of $5\,\,m/\sec $ towards south direction parallel to the railway track. The time taken by the parrot to cross the train is........$sec$
Relative velocity $ = 10 + 5 = 15\;m/sec$
$\therefore t = \frac{{150}}{{15}} = 10\;sec$
$\therefore t = \frac{{150}}{{15}} = 10\;sec$
Other Language