AP EAMCET · PHYSICS · Motion In One Dimension
A train of \(150 \mathrm{~m}\) length is going towards north direction at a speed of \(10 \mathrm{~ms}^{-1}\). A parrot flies at the speed of \(5 \mathrm{~ms}^{-1}\) towards south direction parallel to the railway track. The time for which the parrot flies alongside the train is
- A \(12 \mathrm{~s}\)
- B \(30 \mathrm{~s}\)
- C \(10 \mathrm{~s}\)
- D \(5 \mathrm{~s}\)
Answer & Solution
Correct Answer
(C) \(10 \mathrm{~s}\)
Step-by-step Solution
Detailed explanation
According to question, Relative velocity of parrot with respect to the train, \(\begin{aligned} v_{p t} & =v_t-v_p \\ & =10-(-5) \\ & =10+5=15 \mathrm{~m} / \mathrm{s} \end{aligned}\) \(\therefore\) Time taken by the parrot to fly along side the train is given as…
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