Question

Define average velocity and instantaneous velocity. When are they same ?
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Answer 1

Answer:

average velocity= total displacement/total time. AVG. velocity is always determined for an interval of time.for eg. from 2seconds to 4 seconds.

instantaneous velocity is velocity at particular instant of time. i.e velocity at time t=2 second

both will be equal when body will move with constant velocity or zero accele

Answer 2

Average velocity

: average velocity is the ratio of displacement done by the body to the time taken by it.

instantaneous velocity: instantaneous velocity is the velocity of a body to a specific point in time.