1 Many instances of performance-based design are approved for their adherence to safety principles. 2  Ceremony implies honor, and honor implies an adherence to traditions. Many instances of performance-based design are approved for their adherence to safety principles. 2  Ceremony implies honor, and honor implies an adherence to traditions.
Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity. Sports announcers will occasionally say that a person is accelerating if he/she is moving fast. Yet acceleration has nothing to do with going fast.
These quantities are considered to be the building blocks of physics. They are used to express the laws of physics. Many other quantities can be derived out of the combination of the basic quantities. For instance a speed is the ratio of a length by a time. Acceleration is the ratio of a speed by a time. And a force is the multiplication of acceleration by mass.