Velocity example, a car moving at a constant 20 kilometres per hour in a circular path has a constant speed, but does not have a constant velocity because its direction changes. Hence, the car is considered to be undergoing an acceleration. Speed describes only how fast an object is moving, whereas velocity gives both how fast it is and in which direction the object is moving. If a car is said to travel at 60 km/h, its speed has been specified. However, if the car is said to move at 60 km/h to the north, its velocity has now been specified.
The Ocean Must Be Free The Ocean Must Be Free "The Ocean Must Be Free" is a World War I era song co-written by Dave Kohn & Lew Flint in 1917. The song was published with the caption "Dedicated to the United States Army and Navy to encourage enlistment," on the cover. The first line of the chorus is: "Boys, put on your uniforms." "The Ocean Must Be Free" was reviewed by several news and music publications at the time of its release. "Billboard" said "The Ocean Must be Free is an exceptionally good title for a song at the present time and the words