Analyze the following statements regarding the definition and properties of Work.
I. Work is defined as the scalar product of force and displacement vectors (F ⋅ s).
II. If a force acts on a body but the body undergoes no displacement, the work done is zero.
III. The work done by a force is independent of the frame of reference chosen.
IV. Work done is a scalar quantity and its dimensional formula is [ML²T⁻²].
V. Work done by a force is negative if the angle between force and displacement is obtuse (90° < θ ≤ 180°).
