Question: I do t understand this velocity problem 5.) The displacement (in meters) of a particle moving in a straight line is given by s(t) =1-

I do t understand this velocity problem

5.) The displacement (in meters) of a particle moving in a straight line is given by s(t) =1"- 81+18 where t is measured in seconds. Find the average velocity from t = 2 to t = 5; find the instantaneous velocity at t = 5

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