a moving train is brought to rest within 20 seconds by applying brake find the initial velocity if the retardation due to breaks is 2m/s
Answers
Answered by
6
Let, u be the initial velocity
Retardation is a Time is t
Velocity is v
We know, v = u + at
As, the train stops so v = 0 Time t = 20s
Retardation a = 15m/s
Therefore, according to the formula u = 0 + (15*20) = 300 m/s.
Retardation is a Time is t
Velocity is v
We know, v = u + at
As, the train stops so v = 0 Time t = 20s
Retardation a = 15m/s
Therefore, according to the formula u = 0 + (15*20) = 300 m/s.
Similar questions