9. Assume there is an object whose distance from a fixed point is determined by s(t) = t2 +1' (a) Determine the velocity v(t) of the object at time t. (b) Estimate the distance that the object has travelled between t = 1 and t = 3 by applying the midpoint approximation and n = 6. (c) Use s(t) to determine how far the object has actually travelled between t = 1 and t = 3.

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