# Why is a train that is traveling on a curved track at a constant speed accelerating?

We all grew up thinking "acceleration" means "speeding up". It doesn't.

"Acceleration" means the speed **or the direction** is
**changing**.

So if a moving object is speeding up, slowing down, or keeping a constant speed

on a path that's curving or bending, then there's
**acceleration** going on.

### Picture a ball traveling at a constant speed around the inside of a circular structureis the ball accelerating?

If it's going at a constant speed then it is not accelerating. To accelerate would mean to have a rate of change for speed in some direction. If the ball is going outward while traveling at a constant speed due to centrifugal force then it is accelerating. If it's going inwards due to some ground angle then it is also accelerating. From Newton's laws we know that to have a circular motion, an object must…

### An ice skater glides around a rink at a constant speed of 2m s is the skater accelerating?

Acceleration is change in velocity. These are vectors that have magnitude and direction. Changing either magnitude (speed) or direction will have the skater be accelerating. SO, if the skater is going at a constant speed of 2m/s in a straight line, he is not accelerating. If he is at a constant speed of 2m/s traveling in a circle (you gave the word "around"), he is accelerating. Going around in circles means there is a force…

### A horse is moving a constant speed of 8ms is the horse accelerating?

A constant speed means that the horse is neither accelerating nor decelearating Speed is a scalar which means it has a magnitude but no direction, while acceleration is a vector so it has both a magnitude and a direction. As the magnitude of the speed remains constant, the speed is constant but since the direction the horse travels in changes that horse is in fact accelerating.

### If a car is traveling at a constant speed but is going around a curve what can you say about the cars motion?

The velocity of the car in this case is changing (to specify velocity, you indicate a speed and a direction), therefore the car is accelerating. The velocity of the car in this case is changing (to specify velocity, you indicate a speed and a direction), therefore the car is accelerating. The velocity of the car in this case is changing (to specify velocity, you indicate a speed and a direction), therefore the car is accelerating…

### What do you mean when we talk about a constant speed?

When something has a constant speed, it means it's traveling at that speed with no change. Normally, you'd have periods of acceleration or deceleration where the speed becomes respectively more or less. If you're traveling at 50 mph and that is a constant speed, it's not changing. A constant speed is typically used to make calculations involving speed easier.