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
Love Must Be Tough to Rock 'n Roll)". In October 2008 "Love Must Be Tough" was named Record of the Year by Hi-Fi+ Magazine. "It's an even year, so it must be an Eleanor McEvoy album that's up for an award. Following in the footsteps of "Yola" and "Out There", this year's offering from the Irish chanteuse, "Love Must Be Tough", excels even the exalted standards set by its predecessors. What started out as a collection of covers, songs she wanted to sing from a woman's perspective, rather than in their more normal male voice, soon grew into something more - much, much more."