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Acceleration is the rate of change of an objects speed; in other words, it's how fast velocity changes.According to Newton's second law, acceleration is directly proportional to the summation of all forces that act on an object and inversely proportional to its mass.
Speaking of vacuums, have you ever watched Star Wars or another movie that takes place in space? To check the speed of sound in air or water, try our speed of sound calculator. The acceleration calculator on this site considers only a situation in which an object has a uniform (constant) acceleration.
The epic battles of spaceships, the sounds of blasters, engines and explosions. Space is a vacuum, and no sound can be heard there (sound waves requires matter to propagate). In that case, the acceleration equation is by definition the ratio of the change in velocity over a particular time.
In the next paragraph, we discuss the units of acceleration (SI and Imperial). They might save you a lot of time when dealing with various units.
In the case of distance, you may be interested in the length converter which includes a length conversion table.
Speeding and alcohol content in the blood are the top causes of car accidents. The heavier the objects are, the greater is gravitational force.
It explains, for example, why planets orbit around the very dense Sun.
It's all common sense - if several different forces are pushing an object, you need to work out what they add up to (they may be working in different directions), and then divide the resulting net force by your object's mass.
This acceleration definition says that acceleration and force are, in fact, the same thing.
If you need to estimate it, visit our other calculators where you can find the kinetic energy formula, and it's angular version - the rotational kinetic energy formula.
To keep things clear, we also prepared some acceleration examples that are common in physics.