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wolves5
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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 an initial speed of 2.36 m/sec at an angle of 20.7 degrees above the horizontal. When the stream reachs the beetle a height h avoe the water's surface it is moving horizontal.
https://wug-s.physics.uiuc.edu/cgi/courses/shell/common/showme.pl?cc/DuPage/Phys1201/fall-evening/homework/Ch-04-2D-Motion/wt-archer-fish/archer-fish.gif
(a) What is the vertical component of the water's initial velocity?
I got 0.83 for part a. I did 2.36cos(20.7)
(b) How long does the bettle have to react?
I don't know what to do for this one.
(c) How high is the bettle above the fish?
Would you use d= (vi +vf)/2 x t. You would use the time found in part b right?
(d) What is the horizontal distance between the fish and the bettle?
I'm confused about this one too.
https://wug-s.physics.uiuc.edu/cgi/courses/shell/common/showme.pl?cc/DuPage/Phys1201/fall-evening/homework/Ch-04-2D-Motion/wt-archer-fish/archer-fish.gif
(a) What is the vertical component of the water's initial velocity?
I got 0.83 for part a. I did 2.36cos(20.7)
(b) How long does the bettle have to react?
I don't know what to do for this one.
(c) How high is the bettle above the fish?
Would you use d= (vi +vf)/2 x t. You would use the time found in part b right?
(d) What is the horizontal distance between the fish and the bettle?
I'm confused about this one too.
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