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The cam is designed so that the center of roller A which follows the contour moves on a limaon defined by r = b -

The cam is designed so that the center of roller A which follows the contour moves on a limaçon defined by r = b - c cos θ, where b = 450 mm and c = 205 mm. If the cam does not rotate, determine the magnitude of the total acceleration of A when θ = 75° if the slotted arm revolves with a constant counterclockwise angular rate θ˙ = 2.9 rad/s.

Answer: a = m/s2

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