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Kinematics Forces

  1. Feb 6, 2006 #1
    Can anyone Help with this ?

    As discussed in Example 4-7, the archerfish hunts by dislodging an unsuspecting insect from its resting place with a stream of water expelled from the fish's mouth. Suppose the archerfish squirts water with a speed of 1.6 m/s at an angle of 59.0° above the horizontal, and aims for a beetle on a leaf 3.0 cm above the water's surface.

    -At what horizontal distance from the beetle should the archerfish fire if it is to hit its target in the least time?

    -How much time will the beetle have to react?

  2. jcsd
  3. Feb 6, 2006 #2
    Break up the speed into x and y components. You have an equation which solves for y height. You can use that one to solve for the time. Then, you should know how to do the rest ;)
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