A bird sees a fish below the surface of a lake it dives in, Ask an Expert

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A bird sees a fish below the surface of a lake. It dives in a straight line at 45.0 degree in order to catch the fish. The bird's diving speed is fast enough that it continues to move in approximately a straight line while in the water.

a. If the fish is 3.00 m below the surface of the lake, what is the horizontal distance d that the bird misses catching the fish?

b. Based on your work to answer part (a), why would evolution tend to favor birds that dive straight down (angle = 0 degree) to catch fish in the water?

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