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The position of a dragonfly that is flying parallel to the ground is given as a...

The position of a dragonfly that is flying parallel to the ground is given as a function of time by r =[2.90m+(0.0900m/s2)t2]i^− (0.0150m/s3)t3j^.

a) At what value of t does the velocity vector of the insect make an angle of 44.0 ∘ clockwise from the x-axis?

b) At the time calculated in part (a), what is the magnitude of the acceleration vector of the insect?

c) At the time calculated in part (a), what is the direction of the acceleration vector of the insect?

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Answer #1

(a) 7 = (2.9 +0.000 m/s2 t² ) ê - 0.0 150 met i T: 47 of position cm (velocity is rate of change or displacement) au = 2x0.09

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