In the space at right sketch the position vectors for point C at the beginning and at the end of a small time Sketch of position vectors at t and t +At interval At. 1. Label the change in angle (AO) and the distance between the center of the wheel and point C (rc). Sketch the path taken by point C during this time interval. 90101 A A righ. nlugne What is the distance that point C travels during At? Express your answer in terms of rc and A O. ona po d of T innine 2se ud odT 2. Use your answer above and the definition of linear speed to derive an algebraic expression for the linear speed of point C in terms of the angular speed w of the wheel. What does your equation imply about the relative linear speeds for points farther and farther out on the wheel? Is this consistent with your answer to part A?

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Applications Of Reflection Of Light

When a light ray (termed as the incident ray) hits a surface and bounces back (forms a reflected ray), the process of reflection of light has taken place.

Sign Convention for Mirrors

A mirror is made of glass that is coated with a metal amalgam on one side due to which the light ray incident on the surface undergoes reflection and not refraction.