The slotted bar rotates in the horizontal plane with constant angular velocity ω0. The mas...

The slotted bar rotates in the horizontal plane with constant angular velocity ω0. The mass m has a pin that fits in the slot of the bar. A spring holds the pin against the surface of the fixed cam. The surface of the cam is described by r = r0(2 – cos θ). Determine the polar components of the total external force exerted on the pin as functions of θ.