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.
Must Be a Reason Why music video for "Must Be A Reason Why" was shot at Portland Place, London, and directed by director Andy Hylton. It premiered on June 15, 2011, via Simply Delicious' YouTube account, at a total length of two minutes and forty seconds. The video consists of Pearl and Ward searching for each other in a nightclub, and performing the song amongst the crowd. The video received its first television aiplay on Starz on Friday, June 17, 2011. Must Be a Reason Why "Must Be A Reason Why" is a song by American MC J. Pearl, released as a single in the