The displacement (in feet) of a certain particle moving in a straight line is given by [math].

(A) Find the average velocity for the time period beginning when [math] and lasting
(i) .01 s:
(ii) .005 s:
(iii).002 s:
(iv) .001 s:

NOTE: For the above answers, you may have to enter 6 or 7 significant digits if you are using a calculator.

(B) Estimate the instantaneous velocity when [math].
Answer: