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.
The term acceleration can refer to a scalar acceleration or an acceleration vector. So far, we have only met scalar acceleration, e.g. 5 m/s 2. Vector acceleration is a scalar acceleration and a direction, e.g. 5 m/s 2 to the right.Treat acceleration as a vector when there is another vector quantity, such as velocity or force, involved. Forces need a size and direction, e.g. 300 N to the left.Momentum is equal to mass x velocity.o far, we have only met scalar acceleration, e.g. 5 m/s 2. Vector acceleration is a scalar acceleration and a direction, e.g. 5 m/s 2 to the right. Treat acceleration as a vector when there is another vector quantity, such as velocity or force, involved.