The robot shown has:
$\omega_1 = \omega_5 = 2 \text{ rad/s}$,
$\omega_2 = 3.5 \text{ rad/s}$,
$\omega_3 = \omega_4 = \pi \text{ rad/s}$
$O_1O_2 = 1.2 \text{ m, } O_2A = 0.6 \text{ m}$
Determine the velocity of
the center A of the jaws for
the instant when $\theta = 60^\circ$.
The angle $\beta$ lies in the y-z
plane and is constant at $45^\circ$.