By integrating over time.
Or for first year physics: s=at (constant acceleration; initial speed of zero) Hmm, distance = acceleration X time is how you read s=at.
accleration is the speed. Velocity is when you know the speed of an object and its direction.
Changes in speed or direction
The gradient of the graph.
0. "Constant speed" means it is not accelerating.
An object with an increasing speed is in fact accelerating, hence the acceleration vector may be continually changing (but >0) with time.
There are two parts to acceleration: direction and speed. When either of these aspects are changed, then acceleration changes.
100m dash is all about getting to top speed as fast as possible. the faster you can get to top speed the less time it takes to complete the distance. a combination of acceleration and top speed are crucial in winning a sprint race.
There is a uniform accleration of 9.8 m/s*s experienced by a free falling object, caused due to the earth's gravity.
Dropping a stone from a tall building is an example of acceleration due to gravity. The stone's speed will increase as it falls until it reaches terminal velocity.
Mianus
kg m/s2
A speedometer does not indicate wether acceleration is occurring. It does, however, show instantaneous speed by calculating from the rotations per minute of the axle with the circumference of the tire.