Two trains one of 100 𝑚 and another of length 125m, are moving in mutually opposite directions along parallel lines, meet each other, each with speed 10m/s. If their acceleration are 0.3𝑚/𝑠 2 and 0.2𝑚/𝑠 2 respectively, then the time taken to pass each other will be

Question : Two trains one of 100 𝑚 and another of length 125m, are moving in mutually opposite directions along parallel lines, meet each other, each with speed 10m/s. If their acceleration are 0.3𝑚/𝑠 2 and 0.2𝑚/𝑠 2 respectively, then the time taken to pass each other will be

(A) 5 𝑠

(B) 10 𝑠

(C) 15 𝑠

(D) 20 𝑠

Answer : option (B)

Solution :

Two trains one of 100 𝑚 and another of length 125m, are moving in mutually opposite directions along parallel lines, meet each other, each with speed 10m/s. If their acceleration are 0.3𝑚/𝑠 2 and 0.2𝑚/𝑠 2 respectively, then the time taken to pass each other will be
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