Question: A particle moves with constant acceleration a . The expression vi+at represents the particle's velocity at what instant in time?Here are the choices:- at time

A particle moves with constant acceleration a . The expression vi+at represents the particle's velocity at what instant in time?Here are the choices:- at time -at the "initial" time- when a time t has passed since the particle's velocity was viWould it be the last choice since it can be rewritten as v(t) = vi + a delta t ... and delta t represents the time that has elapsed since the beginning of the particles motion?

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