As shown, a cam has a shape that is described by the function r = r0 (2.00 - cos

Question

As shown, a cam has a shape that is described by the function r = r0 (2.00 - cos theta), where r0 = 1.90ft. A slotted bar is attached to the origin and rotates in the horizontal plane with a constant angular velocity of 0.440radians/s. The bar moves a roller weighing 34.21b along the cam's perimeter. A spring holds the roller in place; the spring's spring constant is 0.6461b/ft. The friction in the system is negligible. When theta = 161 degree, what are Fr and F theta, the magnitudes of the cylindrical components of the total force acting on the roller?

Explanation / Answer

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