Two $2\mathrm{.}6-$lb collars A and $B$ can slide without friction on a frame, consisting of the horizontal rod $OE$ and the vertical rod $CD,$

which is free to rotate about $CD.$ The two collars are connected by a cord running over a pulley that is attached to the

frame at $O$ and a stop prevents collar $B$ from moving. The frame is rotating at the rate ${}^{}=15\mathrm{.}60ra\frac{d}{s}$ and $r=0\mathrm{.}6ft$

when the stop is removed, allowing collar $A$ to move out along rod $OE.$ Neglect the friction and the mass of the frame.

Determine, for the position $r=1\mathrm{.}2ft,$ the tension in the cord and the acceleration of collar A relative to the rod $OE.($Round the final

answer to three decimal places.$)$

The tension in the cord is

lb $.$

The acceleration of collar $A$ is

$f\frac{t}{s^2}$ radially inward.