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It takes 10s and 15s, respectively, for two trains travelling at different constant speeds to completely pass a telegraph post. The length of the first train is 120 m and that of the second train is 150 m. The magnitude of the difference in the speeds of the two trains (in m/s) is _____.
- a)2.0
- b)10.0
- c)12.0
- d)22.0
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
It takes 10s and 15s, respectively, for two trains travelling at diffe...
To solve this problem, we can use the formula:
Speed = Distance / Time
Given:
Length of first train (L1) = 120 m
Length of second train (L2) = 150 m
Time taken by first train to pass the telegraph post (T1) = 10 s
Time taken by second train to pass the telegraph post (T2) = 15 s
Let's calculate the speeds of the two trains first.
Speed of first train (S1) = L1 / T1 = 120 / 10 = 12 m/s
Speed of second train (S2) = L2 / T2 = 150 / 15 = 10 m/s
Now, let's calculate the magnitude of the difference in speeds.
Magnitude of the difference in speeds = |S1 - S2|
Substituting the values, we get:
Magnitude of the difference in speeds = |12 - 10| = 2 m/s
Therefore, the correct answer is option A) 2.0.
Speed = Distance / Time
Given:
Length of first train (L1) = 120 m
Length of second train (L2) = 150 m
Time taken by first train to pass the telegraph post (T1) = 10 s
Time taken by second train to pass the telegraph post (T2) = 15 s
Let's calculate the speeds of the two trains first.
Speed of first train (S1) = L1 / T1 = 120 / 10 = 12 m/s
Speed of second train (S2) = L2 / T2 = 150 / 15 = 10 m/s
Now, let's calculate the magnitude of the difference in speeds.
Magnitude of the difference in speeds = |S1 - S2|
Substituting the values, we get:
Magnitude of the difference in speeds = |12 - 10| = 2 m/s
Therefore, the correct answer is option A) 2.0.
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Community Answer
It takes 10s and 15s, respectively, for two trains travelling at diffe...
Speed = length / time
⇒ length = speed x time
120 = 10 x s1 ⇒ s1 = 12
150 = 15 x s2 ⇒ s2 = 10
|s1 - s2| = 2
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It takes 10s and 15s, respectively, for two trains travelling at different constant speeds to completely pass a telegraph post. The length of the first train is 120 m and that of the second train is 150 m. The magnitude of the difference in the speeds of the two trains (in m/s) is _____.a)2.0b)10.0c)12.0d)22.0Correct answer is option 'A'. Can you explain this answer?
Question Description
It takes 10s and 15s, respectively, for two trains travelling at different constant speeds to completely pass a telegraph post. The length of the first train is 120 m and that of the second train is 150 m. The magnitude of the difference in the speeds of the two trains (in m/s) is _____.a)2.0b)10.0c)12.0d)22.0Correct answer is option 'A'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about It takes 10s and 15s, respectively, for two trains travelling at different constant speeds to completely pass a telegraph post. The length of the first train is 120 m and that of the second train is 150 m. The magnitude of the difference in the speeds of the two trains (in m/s) is _____.a)2.0b)10.0c)12.0d)22.0Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for It takes 10s and 15s, respectively, for two trains travelling at different constant speeds to completely pass a telegraph post. The length of the first train is 120 m and that of the second train is 150 m. The magnitude of the difference in the speeds of the two trains (in m/s) is _____.a)2.0b)10.0c)12.0d)22.0Correct answer is option 'A'. Can you explain this answer?.
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