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 December 26th, 2010, 07:49 PM #1 Senior Member   Joined: Oct 2009 Posts: 895 Thanks: 1 What do these statements mean? Hi all, What do these statements mean? 1) If the instantaneous speed of car remains the same over a period of time we say that car is traveling with constant speed. 2) The average speed = instantaneous speed If the object is traveling at a constant speed, Please help me understand statements 1 and 2 >> and if you could use a graph that would be appreciated.
 December 26th, 2010, 10:50 PM #2 Senior Member     Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,211 Thanks: 520 Math Focus: Calculus/ODEs Re: what that means If the instantaneous speed of an object is constant, meaning $v_i=v=v_f$ then: $\bar{v}=\frac{v_i+v_f}{2}=\frac{2v}{2}=v$ Constant speed means the speeds does not change.

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