Question

A train slows from 60m/s to 20m/s in 50s

A:what is it's acceleration
B:write your answer in word

Answer 1

- 4/5 m/s^2

Step-by-step explanation:

It is going from 60 to 20 m/s so ACCELERATION is negative

acceleration = change in velocity / time

= -40 m/s / 50 s = - 4/5 m/s^2

Answer 2

a = -4/5 m/s^2

Step-by-step explanation:

Acceleration = change in velocity / time

change in velocity = final velocity - initial velocity

a = (20 m/s - 60 m/s) / 50 s

a = -40 m/s / 50 s

a = -4/5 m/s^2

hope this helps! <3