A metro train starts from rest and in five seconds achieves 108 kmh−1. After that it moves with constant velocity and comes to rest after travelling 45 m with uniform retardation. If total distance travelled is 395 m, find total time of travelling

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Physics Problems

Question : A metro train starts from rest and in five seconds achieves 108 kmh−1. After that it moves with constant velocity and comes to rest after travelling 45 m with uniform retardation. If total distance travelled is 395 m, find total time of travelling

(A) 12.2 s

(B) 15.3 s

(C) 9 s

(D) 17.2 s

Answer : option (D)

Solution :

A metro train starts from rest and in five seconds achieves 108 kmh−1. After that it moves with constant velocity and comes to rest after travelling 45 m with uniform retardation. If total distance travelled is 395 m, find total time of travelling
A metro train starts from rest and in five seconds achieves 108 kmh−1. After that it moves with constant velocity and comes to rest after travelling 45 m with uniform retardation. If total distance travelled is 395 m, find total time of travelling
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