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.
Athleteâs foot can also be caused by: 1  Being in contact with warm, damp places. 2  Sweating a lot. 3  Wearing closed shoes, especially ones with plastic linings.  Poor hygiene, including not washing feet properly or wearing dirty 1  socks. Not drying feet after being in contact with water.  Keeping feet wet for long periods of time.