You may be referring to Train Train by Blackfoot.
This depends on how you define your axes. Let's assume they're defined as normal (being positive is accelerating, negative is breaking, and for velocity positive is driving forward, negative is driving in reverse). Then of course, you are speeding up. This simply means the train was in reverse, but it's accelerating in the positive direction now.
An object that is accelerating is either speeding up or slowing down. If the acceleration is in the same direction as the velocity, the object is speeding up. If the acceleration is opposite to the velocity, the object is slowing down.
acceleration is changes in speed slowing down and speeding up.
-- speeding up -- slowing down -- curving
When an object is speeding up or slowing down, it is experiencing acceleration. When it is turning, it is undergoing rotation or changing direction.
Slowing down and Speeding up
If you are saying about internet , it is because of your speed.
changing direction, speeding up, and slowing down
Positive is speeding up and negative is slowing down
Positive acceleration = speeding up. Negative acceleration = slowing down.
Speeding up, slowing down, and turning.
When it is stationary, or when the velocity is constant. If it is speeding up or slowing down, it has acceleration.