The table shows the position of a motorcyclist after accelerating from rest. (a) Find the average velocity

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The table shows the position of a motorcyclist after accelerating from rest.

01 2 3 4.9 20.6 46.5 79.2 124.8 176.7 t (seconds) 4 5 (feet)


(a) Find the average velocity for each time period:

(i) [2, 4} (ii) [3, 4] (iii) [4, 5] (iv) [4, 6]

(b) Use the graph of s as a function of t to estimate the instantaneous velocity when t − 3.

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