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OpenStudy (anonymous):
Use the position function to find the velocity at time t = 2. S(t) = sqrt(t^2 + 8)
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OpenStudy (anonymous):
find the derivative and plug in t=2
OpenStudy (anonymous):
the derivative of sqrt(t^2 + 8) ?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
ok i got t over sqrt(t^2 + 8)
OpenStudy (anonymous):
right. Now put t=2
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OpenStudy (anonymous):
okay
OpenStudy (anonymous):
i got 1 over sqrt 3
OpenStudy (anonymous):
right
OpenStudy (anonymous):
so that will be the velocity?
OpenStudy (anonymous):
yes
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OpenStudy (anonymous):
ok thanks
OpenStudy (anonymous):
yw
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