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Acceleration is the rate of change in velocity, that is the finishing velocity minus the starting velocity divided by the time taken for that change.
Velocity is the rate of change in distance, that is the finishing distance minus the starting distance divided by the time taken for that change.
Distance may be measured in metres and time in seconds. In that case velocity would be measured in metres per second.
Acceleration is then measured in (metres per second) per second or metres per second2.
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Accleration is 9.8 meters or seconds?
Acceleration is measured in m/s2 (metres 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). ^_^
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
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 is the velocity of this object after 30 seconds with an acceleration of 7.8 meters per second squared?
IF it started out from rest, then V = a t = (7.8 x 30) = 234 meters per secondin the direction of the acceleration, at the end of 30 seconds.
