Question
Sun September 08, 2013 By: Hassan Khan
 

In speed with direction in ncert book they say : Average velocity = Initial velocity+Final velocity ÷ 2 In example they say : Average velocity = Displacement÷Total time taken. Are they both same and how ?

Expert Reply
Tue September 10, 2013
Average velocity = Displacement÷Total time taken
 
If the velocity is changing at a uniform rate, then the average velocity is given by the arithmetic mean of initial and final velocity for a given period of time. That is, Average velocity = Initial velocity+Final velocity ÷ 2
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