Question

if a train going 60 m/s hits the brakes and it takes it 1 second to come to a complete stop, what was it acceleration?

Answer 1

Answer:

u = 60 m/s

v = 0 m/s

t = 1 sec

a = (v-u)/t

a = -60 m/s^2

Answer 2

Answer:

a = -60m/s²

Explanation:

u = 60m/s

v = 0m/s (It comes to rest)

t = 1s

a = ?

v = u + at

0 = 60 + (a) (1)

0 = 60 + a

a = -60m/s²

Hope this helps:)