A physics student playing pocket billiards wants to strike
Chapter , Problem 6(choose chapter or problem)
A physics student playing pocket billiards wants to strike her cue ball so that it hits a cushion and then hits the eight ball squarely. She chooses several points on the cushion and then measures the distances from each point to the cue ball and to the eight ball. She aims at the point for which the sum of these distances is least. (a)Will her cue ball hit the eight ball? (b) How is her method related to Fermats principle? Neglect any effects due to ball rotation.
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