The smooth particle has mass M. It is attached to an elastic cord extending from O to P and due to the slotted arm guide moves along the horizontal circular path r = b sin θ. If the cord has stiffness k and unstretched length δ determine the force of the guide on the particle when θ = θ₁. The guide has a constant angular velocity θ'.

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Given: M = 80 gm b = 0.8 m N k = 30- m 8 = 0.25 m 01 0₁ = 60 deg