Explain the term 'coordinated joint movement'.

Coordinated joint movement refers to the simultaneous and controlled movement of multiple joints in a robot to produce a desired motion.

Linear motion:
Coordinated joint control is required to produce linear motion at prismatic joints. The connected links travel in a straight path by concurrently manipulating the expansion or retraction of the joints. The speed and direction of linear motion are determined by the velocity and direction of the joint movement.

Circular motion:
Coordination of the revolute joints is required to provide circular motion. The links move in a fashion that follows a circle by concurrently managing the rotation of the joints. The joint's rotation speed and direction determine the circular motion's speed and direction.

Angular motion:
In angular motion, the connected links move around their respective axes by concurrently controlling the rotation of the joints. The joints’ rotation speed and direction define the speed and direction of angular motion.