Question: The position function of a particle is given by s(/) = 21 + 4 -t, where time, t, is in seconds and distance, s, is

The position function of a particle is given by s(/) =

The position function of a particle is given by s(/) = 21 + 4 -t, where time, t, is in seconds and distance, s, is in metres. Find the velocity and acceleration after 4 s. Do not forget units

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