Solver Problem Chapter 4 Number 41
Upon spotting an insect on a twig overhanging water, an archer
fish squirts water drops at the insect to knock it into the water (Fig. 4-38).
Although the fish sees the insect along a straight-line path at angle 
and distance d, a drop must be launched
at a different angle 
if its parabolic path is to intersect the insect.
If =36.0° and d = 0.900 m, what launch
angle is required for the drop to
be at the top of the parabolic path when it reaches the insect?
