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Question

What is the difference between these two cases:
(Please explain me in simple words)

1) Average velocity = Total Displacement / Total time

2) Average velocity = (Initial velocity + Final velocity) / 2
= [(u+v)/2]
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Solution

Solution - Velocity is the rate at which displacement changes with time. It is a vector, too. The average velocity over some interval is the total displacementduring that interval, divided by the time. The instantaneous velocity at some moment in timeis the velocity of the object right now. 1) Average velocity = Total Displacement / Total time
When the acceleration is constant than the average velocity will become half of the sum of the initial and final velocity.

2) Average velocity = (Initial velocity + Final velocity) / 2
= [(u+v)/2]

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