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
To Be a Slave Best Book of the Year. It was given a 1970 Lewis Carroll Shelf Award. To Be a Slave To Be A Slave is a 1968 nonfiction children's book by Julius Lester, illustrated by Tom Feelings. It explores what it was like to be a slave. The book includes many personal accounts of former slaves, accompanied by Lester's historical commentary and Feelings' powerful and muted paintings. "To Be a Slave" has been a touchstone in children literature for more than 30 years. "To Be a Slave" has won numerous awards, including the 1968 Newbery Honor medal. It was an ALA Notable