question_answer

A train of 150 m length is going towards north direction at a speed of\[\text{1}0\text{ m}{{\text{s}}^{\text{-1}}}\]. A parrot flies at a speed of \[\text{5 m}{{\text{s}}^{\text{-1}}}\] towards south direction parallel to the railway track. Find the time taken by theparrot to cross the train.

Answer:

                Relative velocity of parrot w.r.t. train =5+10 =15 m/s. Time taken by parrot to crossthe train, t = 150/15 = 10 s.