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What is the time bullet take to get at the animal ?

  1. Jan 3, 2009 #1
    1. The problem statement, all variables and given/known data
    A gun designed to shoot with speed 630 m/sec
    a) from which point above the goal must the hunter shoot to catch an animal, if the horizontal distance between them is 700 meter ?
    b) What is the max high for the bullet ?
    c) what is the time bullet take to get at the animal ?

    2. Relevant equations

    3. The attempt at a solution
    a) 6 meter
    b) I cant solve it but the final answer as written in the book is 1.5 meter I dont know how to find it !
    c) 1.1 second
  2. jcsd
  3. Jan 3, 2009 #2
    Re: Projectile

    I can't tell from the question but is the particle fired from an angle or simply a height above the target in the straight x direction? Nevertheless, any time in projectile motion you are trying to find the maximum height of something the solution is to usually just take the projectile equation for y and find the max of it by setting the derivative equal to 0 and solving; but if there is no angle upward when firing then the max height will obviously be the initial y value.
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