Final answer:
The angle formed between the vectors of tangential velocity and centripetal force is always 90°.
Step-by-step explanation:
The angle formed between the vectors of tangential velocity and centripetal force can be determined by examining the relationship between the two vectors. The angle between them is given by the inverse tangent of the ratio of their magnitudes. In this case, the angle is 90° (option c) because the tangential velocity and the centripetal force are always perpendicular to each other.