Question

A train slow down from 60m/s to 20m/s in 50
a.what is it's acceleration?​

Answer 1

Step-by-step explanation:

initial speed = 60

final speed = 20

time = 50

a = ??

v2 = v1 + at

20 = 60 + 50 a

- 40 = 50 a

a = -4/5

= - 0.8 m/s²