$(1)$ The link is pinned at $O,$ and as a result of its rotation it $.$

drives the peg $P$ along the vertical guide. Compute the magnitua

of the velocity and acceleration of $P$ as a function of $$ if $=ct$

rad $,$ where $c$ is a constant.

ANS: $v=lcse{c}^{2}ct$

$a=2l{c}^{2}se{c}^2$cttanct.