The bar $AB$ has a clockwise angular velocity of $3\mathrm{.}8ra\frac{d}{sec}.$ Construct and determine the vector velocity of each end if the instantaneous center of zero velocity is $($a$)$ at $C_1$ and $($b$)$ at $C_2.$

Answers:

$($a$)$ Instantaneous center at $C_1$ :

$v_A=i_{-},i+$

$v_B=i^{-},i+$

$,j$

$($b$)$ Instantaneous center at $C_2$ :