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Question

Average velocity of a particle moving in a straight line, with constant acceleration a and initial velocity u in the first t seconds is :


  1. u

  2. u + at

  3. u + (at/2)

  4. (u + at)/2


Solution

The correct option is C

u + (at/2)


Here,
Initial velocity is u
acceleration is a
Total time taken is t  

Average Velocity =Total displacementTotal time

Total displacement=ut+at22

Average Velocity=ut+at22t

                                   =u+at2

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