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September 19, 2014

September 19, 2014

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

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?

- Calculus -
**Reiny**, Tuesday, October 19, 2010 at 11:48pma) find s(3) - s(0)

b) avg vel in first 3 sec = (s(3) - s(0))/3

c) find derivative of s(t), then sub in t = 3

d) find derivative of c) result, sub in t=3

e) mmmh, one of those derivatives (velocity or acceleration ) must be zero when I change direction ...

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