A collar with mass m = 2 kg is mounted on a rotating arm of negligible mass that is initia...

A collar with mass m = 2 kg is mounted on a rotating arm of negligible mass that is initially rotating with an angular velocity ω0 = 1 rad/s. The collar’s initial distance from the z axis is r0 = 0.5 m and d = 1 m. At some point, the restraint keeping the collar in place is removed so that the collar is allowed to slide. Assume that the friction between the arm and the collar is negligible.

Figure P5.85

If no external forces and moments are applied to the system, with what speed will the collar impact the end of the arm?