# Problem on Two and Three dimensional motion - projectile motion?

I had asked this question earlier and the answer I got was "use standard formulas for projectile motion"... obviously I know this that is why I captioned it as "Problem on Two and Three dimensional motion - projectile motion". I also have already tried applying those formulas.
Can anyone...
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I had asked this question earlier and the answer I got was "use standard formulas for projectile motion"... obviously I know this that is why I captioned it as "Problem on Two and Three dimensional motion - projectile motion". I also have already tried applying those formulas.

Can anyone help me in this please? Here goes the question -

Upon spotting an insect on a twig overhanging water, an archer fish squirts water drops at the insect to knock it into the water. Although the fish sees the insect along a straight line path at and angle "phi" and distance "d", a drop must be launched at a different angle "theta 0" if its parabolic path is to intersect the insect. If "phi" = 36 degrees "d" = 0.9 m and the launch speed is 3.56 m/s what "theta 0" is required for the drop to be at the top of the parabolic path when it reaches the insect?

Can anyone help me in this please? Here goes the question -

Upon spotting an insect on a twig overhanging water, an archer fish squirts water drops at the insect to knock it into the water. Although the fish sees the insect along a straight line path at and angle "phi" and distance "d", a drop must be launched at a different angle "theta 0" if its parabolic path is to intersect the insect. If "phi" = 36 degrees "d" = 0.9 m and the launch speed is 3.56 m/s what "theta 0" is required for the drop to be at the top of the parabolic path when it reaches the insect?

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