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The actual expression for accelleration is metres per second per second. Because speed is metres per second, and the concept of accelleration is how fast is speed changing... in other words if something is travelling at 10 metres per second at Time A, and it is travelling at 20 metres per second at Time B, we know that it increased by 10 metres per second, but if we know the difference between Time A and Time B we can then say how fast that change was occurring.
Answer
Acceleration is the rate of change of velocity. In other words, it is velocity divided by time. So its SI unit of measurement should be spoken as, 'metre per second per second', not 'metre per second squared'.
Strictly speaking, therefore, its symbol should be m/s/s which, of course, is the same as m/s2 (where the 2 is a superscript).
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Why are the units for acceleration meters per second?
Acceleration is not measured in meters/second. Meters/second is a unit of speed. Since acceleration is defined as change of speed divided by time, the units are meters/second/second, usually written as meters/second2.
What is 9.8m divided by s squared?
9.8 meters per second squared is the acceleration of gravity.
What is the acceleration of a sprinter that runs a race in 12 seconds and finishes the race traveling 24 meters per second?
The sprinter's acceleration is 2 meters per second squared.
What are the units of acceleration?
Acceleration is a change in velocity per unit of time. Velocity is distance (d) per unit of time (t). That makes acceleration distance per unit of time squared, or something like this:We have distance/time2, or d/t2Distance is commonly measured in meters, and time in seconds. This makes acceleration appear in meters per second per second, or meters per second squared, or m/sec2.m/s2meters per second squared
Why is acceleration often expressed with units of meters per second squared?
Because if speed is measured in meters per second (m/s) and time is measured in seconds, the SI unit of acceleration is meters per second per second (m/s2). ^_^
