இரண்டு ரயில்கள் மணிக்கு 40 கி.மீ, 32 கி.மீ வேகத்தில் எதிரெதிர் திசையில் செல்கிறது. அந்த ரயில்களின் நீளங்கள் முறையே 121 மீ , 99 மீ ஆகும். எனில் அவை ஒன்றையொன்று கடக்க ஆகும் நேரம் எவ்வளவு? The two trains go in opposite directions at speeds of 40 km and 32 km / h. The lengths of those trains are 121 m and 99 m respectively. If so, how much time does it take to cross each other?

Because the trains move in opposite directions, their relative speed is the sum of their speeds: 40 + 32 = 72 km/h. We convert this relative speed to meters per second by multiplying by 5/18, which gives 20 m/s. The total distance covered to cross each other is the sum of their lengths: 121 + 99 = 220 meters. Using the formula time = distance / speed, we calculate 220 / 20 = 11 seconds. It takes 11 seconds to cross each other.

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