The instructions are to use x as the radial distance, etc. Turning those into r, phi and using x, y for fixed axes is not going to help.drop_out_kid said:
Classical mechanics is a branch of physics that studies the motion of objects under the influence of forces. It is based on Newton's laws of motion and is used to describe the behavior of macroscopic objects.
Rotational motion is the movement of an object around an axis or center of rotation. It can be described in terms of angular displacement, velocity, and acceleration.
Torque is a measure of the force that causes an object to rotate around an axis. It is related to rotational motion through the equation τ = Iα, where τ is torque, I is moment of inertia, and α is angular acceleration.
Angular velocity is a measure of how fast an object is rotating around an axis, while linear velocity is a measure of how fast an object is moving in a straight line. Angular velocity is measured in radians per second, while linear velocity is measured in meters per second.
Rotational and translational motion are connected through the concept of inertia. An object's moment of inertia determines how it will respond to rotational motion, while its mass determines how it will respond to translational motion. In a rigid body, rotational and translational motion are always coupled.