Question

The writing on the passenger-side mirror of your car says "Warning! Objects in mirror are closer than they appear" (Figure 1). There is no such warning on the driver's mirror. Consider a typical convex passenger-side mirror with a focal length of -80 cm. A 1.5-m-tall cyclist on a bicycle is 28 m from the mirror. You are 1.2 m from the mirror, and suppose, for simplicity, that the mirror, you, and the cyclist all lie along a line.

Part A How far are you from the image of the cyclist? Express your answer to two significant figures and include the appropriate units. L = ___________

Part B How far would you have been from the image if the mirror were flat? Express your answer to two significant figures and include the appropriate units. Lf= ________________

Part C What is the image height? Express your answer to two significant figures and include the appropriate units. h`= ___________

Part D What would the image height have been if the mirror were flat? Express your answer to two significant figures and include the appropriate units. h`f = ____________

Answer 1