PROBLEMS10.1 Faster than light. I stand 10 feet from a white wall, holding a laser pointer. Thepointer makes a red dot on the wall directly in front of me. Then with a quick flick ofmy wrist (lasting only 0.1 second) I twist the laser pointer by 45°, and the red dot moves10 feet in 0.1 second. I repeat the experiment standing 20 feet from a white wall, and thered dot moves 20 feet in 0.1 second. Finally, I repeat the experiment standing 186 000 milesfrom a white wall, and the red dot moves 186 000 miles in 0.1 second. In other words,the red dot moves 10 times faster than light speed. Why doesn't this motion violate thespeed limit derived in this chapter?

To determine: The apparent motion of a laser pointer dot on a white wall and determine that the dot…

Answered: 10.1 Faster than light. I stand 10 feet…

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