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The position of a dragonfly that is flying parallel to the ground is given as a function of time by F = (2.90 m+ (0.0900 m/s)?]- (0.0150 m/s):33. Part A At what value of t does the velocity vector of the insect make an angle of 42.0" clockwise from the x-axis? Express your answer to three significant figures and include the appropriate units. OD? CH PÅ t = 3.12 s Submit Previous Answers Request Answer X Incorrect; Try Again; 6 attempts remaining Part B At the time calculated in part (a), what is the magnitude of the acceleration vector of the insect? Express your answer to three significant figures and include the appropriate units. T IMÃ 0 E ? a = Value Units Submit Request Answer

Part C At the time calculated in part (a), what is the direction of the acceleration vector of the insect? Express your answer to three significant figures and include the appropriate units. C! HÅR O 2 ? Value Units clockwise from +X-axis. Submit Request Answer < Return to Assignment Provide Feedback

Lorslaris A small toy airplane is flying in the xy-plane parallel to the ground. In the time interval t=0 to t=10.0 s, its velocity as a function of time is given by ū = (1.50m/s?)tî + [11.0m/s – (2.00 m/s?)t] . Part A At what value of t is the velocity of the plane perpendicular to its acceleration? Express your answer to three significant figures and include the appropriate units. BE Value Units Submit Request Answer