Question

A train is traveling N at 45 m/s. After 10s, it is traveling at 90 m/s. What is it's acceleration?

Answer 1

The train's acceleration is 4.5 m/s²

Step-by-step explanation:

The train's speed increased by 45 m/s after 10 seconds, which means that it's speed increased by 4.5 m/s each second, or rather 4.5m/s²