Analyze the following statements regarding Stress and Strain.
I. Stress is defined as the restoring force per unit area.
II. Strain is a dimensionless quantity representing the ratio of change in dimension to original dimension.
III. Longitudinal strain is produced by a shearing stress.
IV. Stress is a vector quantity, while strain is a scalar quantity.
V. The SI unit of stress is Pascal (Pa), while strain has no units.