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Physics, 21.06.2019 17:30
The position of a dragonfly that is flying parallel to the ground is given as a function of time by râ =[2.90m+(0.0900m/s2)t2]i^â (0.0150m/s3)t3j^. a: at what value of t does the velocity vector of the insect make an angle of 34.0 degree 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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