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.
1 Ring Worm of the feet can appear on parts or all of the feet. 2  It presents as a round, itchy scaly patches, which can be delicate or in some cases thick or hyperkeratotic, which is a thickening of the outer layer of the skin that produces a tough and often dry area of skin on the foot that can have some discoloration.. Exogenous Causes. 1  Dry Skin is the most common and obvious cause of itchy soles of the feet. 2  The most likely cause is a lack of moisture in the skin. 3  This affects the elderly more than the younger members of the population and it is found more frequently during the colder winter months.