दो रेलगाड़ियाँ 140 मीटर तथा 160 मीटर लंबी है क्रमशः 50 किमी/घटा
तथा 40 किमी/घंटा की चाल से समांतर पटरियों पर एक ही दिशा में
चल रही है, तो एक दूसरे को पार करने में कितना समय लगेगा।
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Answer:
16 second
Step-by-step explanation:
pahali train ka speed = 50 km/h
dusari ,, ,, ,, = 40 km/h
so the speed of trian for across to each other = 50-40 = 10 km/h
length of slower train = 160 m
or distance = 160 m =
so the total time to take to across to each other = distance / speed
= 160/10
= 16 second
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