Answer :
The statement about an integral hub being a single cast part is true and is a concept in engineering typically used in the design of electric vehicle motors to simplify vehicle dynamics.
The statement that an integral hub means that the hub and the rest of the rotor are cast as a single part is generally true. In engineering, particularly in the context of electric vehicles, this design allows for a direct integration of the motor into the hub of the wheel, which streamlines the overall mechanism by eliminating the need for a transmission. This integration simplifies the dynamics of the vehicle as the entire assembly rotates uniformly, ensuring that all points, such as the rim and spoke, have the same angular position, velocity, and acceleration.
Any forces acting on the object within this system would be distributed evenly, with the rotor applying a normal force centripetally in response to the object's inertia.
