It is a vector. A scalar has only magnitude. A vector has magnitude and direction. Acceleration is a vector because it has magnitude and direction. That's why an object can be said to be accelerating if it has a circular rotation and a constant speed; even though it's speed isn't changing, it's direction constantly is.ass is a scalar quantity because it doesn't have direction. Acceleration is a vector quantity because it has both magnitude and direction.
1. Exogenous Causes. 1  Dry Skin is the most common and obvious cause of itchy soles of the feet. 2  Contact Dermatitis is a skin reaction, which results from the exposure to allergens or irritants, such as certain soaps, cosmetics, detergents or even some plants, such as poison ivy.
A wide variety of mild to serious diseases, conditions and disorders can be the underlying causes of itchy soles of feet, such as dermatitis, athleteâs foot and systemic diseases. Such itch can also be associated with a rash and can cover a small area or the entire foot. Depending on the root cause, the proper treatment should differ in severity, duration and frequency. Dry Skin is the most common and obvious cause of itchy soles of the feet.