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.
Here is a look at the most common causes of sore feet, based on region: 1  Heel: Plantar fasciitis, heel spurs, calluses, and dry, cracked heels. 2  Arch: Flat feet, pes planus or fallen arches, plantar warts, Metatarsalgia, pes cavus, and overpronation. 3  Toes: Broken toe, bunions, hallux rigidus, turf toe, and hallux limitus.