Wednesday, February 10, 2010

True or False An object travelling in uniform motion has no velocity.?

FALSE%26gt; Uniform Motion refers to something that is traveling at a *constant velocity* in a straight line. Velocity is distance over time. The concepts are not mutually exclusive.True or False An object travelling in uniform motion has no velocity.?
Velocity is a vector. It has both a magnitude (speed) and a direction. Uniform motion implies a constant speed and direction. Therefore the object has a velocity and the statement is false.True or False An object travelling in uniform motion has no velocity.?
An object that is travelling in uniform motion has a speed. Velocity is just speed with a direction. Speed almost always has a direction (unless not stated) and therefore I believe this statement to be false.

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