Question

The position of a bird flying parallel to the ground is given by the following equation...

The position of a bird flying parallel to the ground is given by the following equation as a function of time:
?⃗ = [2.9? + (0.09 ?⁄?^2)?^2]?̂ − (0.015 ?⁄?^3)?^3?̂
(a) At what value of t does the velocity vector of the bird make an angle of 30o clockwise from the +x axis?
(b) At the time calculated in part (a) what are the magnitude and direction of the bird’s acceleration vector?

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