Peabody /ËpiËbÉdi/ is a city in Essex County, Massachusetts, United States. At the 2010 census, the population was 51,251, and in 2014 the estimated population was 52,376. Peabody is located in the North Shore region of Massachusetts. 1 History.
Acceleration is a vector because it has a magnitude and a direction (Accelerating at a rate of 5 Miles Per Hour North). Speed is a scalar because it only has a magnitude (35 Miles Per Hour) . Velocity is the derivative of the acceleration and is also a vector (35 miles per hour North). Adam Â· 5 years ago. Thumbs up.
In physics or physical science, acceleration (symbol: a) is defined as the rate of change (or derivative with respect to time) of velocity. It is thus a vector quantity with dimension length/timeÂ². In SI units, acceleration is measured in meters/secondÂ² using an accelerometer. To accelerate an object is to change its velocity, which is accomplished by altering either its speed or direction (like in case of uniform circular motion) in relation to time. In this strict mathematical sense, acceleration can have positive and negative vals (deceleration).