Two trains are moving in opposite directions
दो ट्रेनें 60km/h और 110 km/h की चाल से विपरीत दिशाओं में गति कर रही हैं। एक ट्रेन की लंबाई 360 m हैं। उन्हें एक – दूसरे को पार करने में 21 सेकंड का समय लगता है। दूसरी ट्रेन की लंबाई (mमें) दशमलव के 2 स्थानों तक ज्ञात कीजिए।
Detailed Solution & Logic
631.66
Speeds = 60,110 km/h
Relative speed = 60 + 110 = 170 km/h
$ 170 \times \dfrac{1000}{3600} = \dfrac{425}{9} $m/s
Time = 21 s
Total length = $ \dfrac{425}{9} \times 21 = \dfrac{8925}{9} $= 991.66 m
Given length = 360 m
Other train length = 991.66 - 360 = 631.66 m
Answer: 631.66 m
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