Velocity is a physical vector quantity; both magnitude and direction are needed to define it. The scalar absolute value (magnitude) of velocity is called speed, a quantity that is measured in metres per second (m/s or mâs â1) in the SI (metric) system.or example, 5 metres per second is a scalar (not a vector), whereas 5 metres per second east is a vector. If there is a change in speed, direction, or both, then the object has a changing velocity and is said to be undergoing an acceleration.
The duck bill is the result of unnatural overfill in the upper lip. It is make worse when volume is placed in the lip about the vermillion lip edge. The key is to appreciate that only a certain amount of volume is acceptable in a given lip.
Here are a few major causes of lip and skin acne: 1  Hormone Imbalance: Variations in the production of various hormones in different ages or physical situations affects the production of sebum. 2  Oily Skin Type: People with oily skin type are more prone to develop lip bumps [6]. 3  Herpes: Virus-induced diseases like herpes can cause bumps on lip.