Friday
September 19, 2014

Homework Help: Calculus

Posted by Ally on Tuesday, October 19, 2010 at 11:37pm.

A particle moves along a line so that its posistion at any t is greater than or equal to 0 is given by the function s(t)= t^3-8t+1, where s is measured in feet and t is measured in seconds.

a) find the displacement during the first three seconds

b) Find the average velocity during the first three seconds

c) Find the instantaneous velocity when t=3 seconds

d) find the accelteration of the object when t=3 seconds

e) At what value or values of t does the particle change direction?

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