Question

The brakes applied to a train moving at 90 km/h produces a retardation of 5m/s^2. Calculate the tome it takes to stop.

Answer 1

Answer:

the time taken is 5 seconds

Explanation:

the speed of the train is 25 m/s

while acceleration is. - 5 m/s²

by using the first equation of the motion

v = u + at

here v = 0

thus at = u

t = 25 /5 = 5 sec