Question

a moving train is bought to rest within 20 seconds by applying brakes.Find the initial velocity (u) if the retardation due to break is 1.5 metre per second square​

Answer 1

Answer:

Therefore, according to the formula u = 0 + (15*20) = 300 m/s

Explanation:

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Answer 2

Answer:

u=0 (15×20) => 300 m/s............