Homework H$\mathrm{.}3.$AHomework H$\mathrm{.}3.$B

Given: An L$-$shaped telescoping arm is pinned to ground at point O$.$ End A of the arm is constrained to move within a stationary circular slot with a constant speed of $v_A.$ At the instant shown, the arm is oriented horizontally with end A located immediately to the left of the center C of the circular slot. A set of $xyz$ axes are attached to section OB of the telescoping arm, with an observer also attached to this section of the arm.

Find: Determine the angular velocity and angular acceleration of the arm. Write your answers as vectors.

Given: The disk shown is rotating about its center with a constant rotation rate of $.$ Four slots

have been cut into the disk, and a particle in each slot has a constant speed of $v_{\text{r}\text{e}\text{l}}$ relative to the

disk. Each particle is at a distance of $R$ from the center of the disk.

Find: Determine the velocity and acceleration of each particle in the disk. Write your answers as

vectors.