Question
Download Solution PDFएक ट्रेन एक खम्भे को 5 सेकंड में पार करती है और सुरंग को 20 सेकंड में पार करती है। यदि ट्रेन की चाल 90 मी/से. है, तो सुरंग की लम्बाई ज्ञात कीजिए।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
खम्भे को पार करने में लगा समय = 5 सेकंड
सुरंग को पार करने में लगा समय = 20 सेकंड
प्रयुक्त सूत्र:
चाल = दूरी/समय
गणना:
माना सुरंग की लंबाई x मीटर और ट्रेन की लंबाई y मीटर है।
समय = दूरी/चाल
⇒ 5 = (y/90)
⇒ y = 450 मीटर
सुरंग पार करने का समय = दूरी/चाल
⇒ 20 = (y + x)/90
⇒ 20 × 90 = (450 + x)
⇒ x = 1800 - 450 = 1350
∴ सुरंग की लंबाई 1350 मीटर है।
Last updated on Jun 17, 2025
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