The height of an object thrown on the surface of a certain planet is given by s(t) = 60 + 16.4t – 4.1t2 ,t 2 0 Where s is in meters, t is in seconds. In all calculations, don't forget the units!!! a) What is the velocity? b) What is the acceleration? c) When is the velocity zero? d) What is the maximum height?

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