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Mathematics 15 Online
OpenStudy (anonymous):

The position of an object at time t is given by s(t) = -9 - 3t. Find the instantaneous velocity at t = 8 by finding the derivative.

OpenStudy (anonymous):

please help

OpenStudy (zpupster):

http://openstudy.com/study#/updates/5175e33ce4b0050fabb9e4f3 here is a question like yours answered nicely

OpenStudy (anonymous):

would the answer be -3?

OpenStudy (phi):

yes, the derivative of s(t)= -9 - 3t with respect to t is -3 which means the velocity is independent of time, and is always -3, even at t=8

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