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Find the length of the bridge, which a train 120 m long travelling at 54 kmph can cross in 30 seconds
Correct answer is '350'. Can you explain this answer?
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Find the length of the bridge, which a train 120 m long travelling at ...
350 m
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Find the length of the bridge, which a train 120 m long travelling at ...
Given:
- Length of the train = 120 m
- Speed of the train = 54 km/h
- Time taken to cross the bridge = 30 seconds
To find:
- Length of the bridge
Formula:
Speed = Distance / Time
Conversion:
- Speed is given in km/h, so we need to convert it to m/s to be consistent with the units used for length.
- 1 km/h = (1 * 1000) / (60 * 60) m/s = 5/18 m/s
Calculations:
Step 1: Convert the speed from km/h to m/s
- Speed = 54 km/h = (54 * 5/18) m/s = 15 m/s
Step 2: Calculate the distance covered by the train in 30 seconds
- Speed = Distance / Time
- Distance = Speed * Time
- Distance = 15 m/s * 30 s = 450 m
Step 3: Calculate the length of the bridge
- Total distance covered = Length of the train + Length of the bridge
- 450 m = 120 m + Length of the bridge
- Length of the bridge = 450 m - 120 m = 330 m
Answer:
The length of the bridge is 330 m.
- Length of the train = 120 m
- Speed of the train = 54 km/h
- Time taken to cross the bridge = 30 seconds
To find:
- Length of the bridge
Formula:
Speed = Distance / Time
Conversion:
- Speed is given in km/h, so we need to convert it to m/s to be consistent with the units used for length.
- 1 km/h = (1 * 1000) / (60 * 60) m/s = 5/18 m/s
Calculations:
Step 1: Convert the speed from km/h to m/s
- Speed = 54 km/h = (54 * 5/18) m/s = 15 m/s
Step 2: Calculate the distance covered by the train in 30 seconds
- Speed = Distance / Time
- Distance = Speed * Time
- Distance = 15 m/s * 30 s = 450 m
Step 3: Calculate the length of the bridge
- Total distance covered = Length of the train + Length of the bridge
- 450 m = 120 m + Length of the bridge
- Length of the bridge = 450 m - 120 m = 330 m
Answer:
The length of the bridge is 330 m.
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Community Answer
Find the length of the bridge, which a train 120 m long travelling at ...
54kmph×5/18=15mps
d=s×t
d=train lenght +bridge =15×30
120+b=450
b=330m
d=s×t
d=train lenght +bridge =15×30
120+b=450
b=330m
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Find the length of the bridge, which a train 120 m long travelling at 54 kmph can cross in 30 secondsCorrect answer is '350'. Can you explain this answer?
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Find the length of the bridge, which a train 120 m long travelling at 54 kmph can cross in 30 secondsCorrect answer is '350'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about Find the length of the bridge, which a train 120 m long travelling at 54 kmph can cross in 30 secondsCorrect answer is '350'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Find the length of the bridge, which a train 120 m long travelling at 54 kmph can cross in 30 secondsCorrect answer is '350'. Can you explain this answer?.
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