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A 300 m long train is moving to north at a speed of 10 m/s. A bird flying towards south with a speed of 5 m/s crosses the train. The time taken by the bird to cross the train would be
- a)30 s
- b)20 s
- c)10 s
- d)15 s
Correct answer is option 'B'. Can you explain this answer?
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A 300 m long train is moving to north at a speed of 10 m/s. A bird fly...
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A 300 m long train is moving to north at a speed of 10 m/s. A bird fly...
Given information:
- Length of the train = 300 m
- Speed of the train = 10 m/s (moving towards north)
- Speed of the bird = 5 m/s (flying towards south)
To find:
- Time taken by the bird to cross the train
Explanation:
- Let's assume that the bird starts crossing the train from the front of the train (i.e., from the north end) and flies towards the south end.
- Since the bird is flying towards the south and the train is moving towards the north, their relative speed would be the sum of their individual speeds, which is 10 m/s + 5 m/s = 15 m/s (in the opposite direction of the bird's flight).
- The time taken by the bird to cross the train would be the distance it covers divided by its speed.
- The distance that the bird covers is equal to the length of the train, which is 300 m.
- Therefore, the time taken by the bird to cross the train would be:
Time = Distance / Speed
Time = 300 m / 15 m/s
Time = 20 s
Therefore, the correct answer is option B (20 s).
Key points to remember:
- The relative speed of two objects moving in opposite directions is the sum of their individual speeds.
- The time taken by an object to cover a distance is equal to the distance divided by its speed.
- Length of the train = 300 m
- Speed of the train = 10 m/s (moving towards north)
- Speed of the bird = 5 m/s (flying towards south)
To find:
- Time taken by the bird to cross the train
Explanation:
- Let's assume that the bird starts crossing the train from the front of the train (i.e., from the north end) and flies towards the south end.
- Since the bird is flying towards the south and the train is moving towards the north, their relative speed would be the sum of their individual speeds, which is 10 m/s + 5 m/s = 15 m/s (in the opposite direction of the bird's flight).
- The time taken by the bird to cross the train would be the distance it covers divided by its speed.
- The distance that the bird covers is equal to the length of the train, which is 300 m.
- Therefore, the time taken by the bird to cross the train would be:
Time = Distance / Speed
Time = 300 m / 15 m/s
Time = 20 s
Therefore, the correct answer is option B (20 s).
Key points to remember:
- The relative speed of two objects moving in opposite directions is the sum of their individual speeds.
- The time taken by an object to cover a distance is equal to the distance divided by its speed.
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A 300 m long train is moving to north at a speed of 10 m/s. A bird flying towards south with a speed of 5 m/s crosses the train. The time taken by the bird to cross the train would bea)30 sb)20 sc)10 sd)15 sCorrect answer is option 'B'. Can you explain this answer?
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A 300 m long train is moving to north at a speed of 10 m/s. A bird flying towards south with a speed of 5 m/s crosses the train. The time taken by the bird to cross the train would bea)30 sb)20 sc)10 sd)15 sCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A 300 m long train is moving to north at a speed of 10 m/s. A bird flying towards south with a speed of 5 m/s crosses the train. The time taken by the bird to cross the train would bea)30 sb)20 sc)10 sd)15 sCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 300 m long train is moving to north at a speed of 10 m/s. A bird flying towards south with a speed of 5 m/s crosses the train. The time taken by the bird to cross the train would bea)30 sb)20 sc)10 sd)15 sCorrect answer is option 'B'. Can you explain this answer?.
A 300 m long train is moving to north at a speed of 10 m/s. A bird flying towards south with a speed of 5 m/s crosses the train. The time taken by the bird to cross the train would bea)30 sb)20 sc)10 sd)15 sCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A 300 m long train is moving to north at a speed of 10 m/s. A bird flying towards south with a speed of 5 m/s crosses the train. The time taken by the bird to cross the train would bea)30 sb)20 sc)10 sd)15 sCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 300 m long train is moving to north at a speed of 10 m/s. A bird flying towards south with a speed of 5 m/s crosses the train. The time taken by the bird to cross the train would bea)30 sb)20 sc)10 sd)15 sCorrect answer is option 'B'. Can you explain this answer?.
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A 300 m long train is moving to north at a speed of 10 m/s. A bird flying towards south with a speed of 5 m/s crosses the train. The time taken by the bird to cross the train would bea)30 sb)20 sc)10 sd)15 sCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for A 300 m long train is moving to north at a speed of 10 m/s. A bird flying towards south with a speed of 5 m/s crosses the train. The time taken by the bird to cross the train would bea)30 sb)20 sc)10 sd)15 sCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of A 300 m long train is moving to north at a speed of 10 m/s. A bird flying towards south with a speed of 5 m/s crosses the train. The time taken by the bird to cross the train would bea)30 sb)20 sc)10 sd)15 sCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
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