Velocity (metric system) as metres per second (m/s) or as the SI base unit of (m⋅s). For example, "5 metres per second" is a scalar, 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". To have a constant velocity, an object must have a constant speed in a constant direction. Constant direction constrains the object to motion in a straight path thus, a constant velocity means motion in a straight line at a constant speed. For
It Must Be Christmas Like Nashville" wrote a positive review in which he praised Young's "classic approach" to the holiday fare. "Whether it be a "New" classic or an evergreen one," he writes, "Young hits all the right notes on the album." Upon release, "It Must Be Christmas" debuted in the top five of the "Billboard" Top Country Albums chart at number four and also topped the Holiday Albums chart. The album has sold 74,100 copies in the US as of November 2017. It Must Be Christmas It Must Be Christmas is the sixth studio album and first Christmas album by American country music