Question

A train of $150 \, m$ length is going towards north direction at a speed of $10 \, ms^{-1}$. A parrot flying at the speed of $5 \, ms^{-1}$ towards south direction parallel to the railway track. The time taken by the parrot to cross the train is equal to

• A. 15 s
• B. 12 s
• C. 10 s
• D. 8 s

Answer 1

Answer: (C)

10 s

Answer 2

${Time\, taken = \frac{distance}{relative \, velocity} = \frac{150}{10 + 5}}$ = 10 s