The engine of a train can impart a maximum acceleration of 1ms −2 and the brakes can give a maximum retardation of 3ms −2 . The least time during which a train can go from one place to the other place at a distance of 1.2 km is nearly

April 10, 2022

by Ezee_Notes

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Physics Problems

Question : The engine of a train can impart a maximum acceleration of 1ms −2 and the brakes can give a maximum retardation of 3ms −2 . The least time during which a train can go from one place to the other place at a distance of 1.2 km is nearly

(A) 108s

(B) 191 s

(D) time is fixed

Answer : option (C)

Solution :

The engine of a train can impart a maximum acceleration of 1ms −2 and the brakes can give a maximum retardation of 3ms −2 . The least time during which a train can go from one place to the other place at a distance of 1.2 km is nearly