At the instant shown, the robotic arm ab is rotating counterclockwise at omega = 5 rad/s and has an angular acceleration alpha = 2 rad/s2. simultaneously, the grip bc is rotating counter clockwise at omega' = 6 rad/s and alpha' = 2 rad/s2, both measured relative to a fixed reference. determine the velocity and acceleration of the object held at the grip c.

Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa.s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)