Upon spotting an insect on a twig overhanging water, an archer fish squirts water drops at the insect to knock it into the water (Figure). Although the fish sees the insect along a straight-line path at angle ф and distance d, a drop must be launched at a different angle θ₀ if its parabolic path is to intersect the insect. If ф = 36.0° and d = 0.900 m, what launch angle θ₀ is required for the drop to be at the top of the parabolic path when it reaches the insect?

Transcribed Image Text:

Insect *on twig Archer fish