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Polar Coordinates robotic arm with radius and angle as functions of time

Problem 11.162 Polar coordinates-robot arm with radius and angle as functions of time NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. The angular displacement of the robotic arm is programmed according to the relationship θ-(177)(sinm where θ and t are expressed in radians and seconds, respectively. Simultaneously, the arm is programmed to extend so that the distance to A follows the relationship4e2j, where rand tare expressed in feet and seconds, respectively. Save As Problem 11.162.b Polar coordinates-robot arm with radius and angle as functions of time-find acceleration Determine the acceleration of point A when t-1.5 s

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