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Cricket bat impulse problem

  1. Mar 15, 2008 #1
    1. The problem statement, all variables and given/known data
    A 20 g cricket (Acheta domestica) leaps through a 2.2 m horizontal distance. The initial velocity of the cricket makes a 28° angle with the horizontal direction. If it takes the cricket 0.010 s to leave the ground, what is the magnitude of the impulse of the total force on the cricket that gives it the speed needed for the jump?

    2. Relevant equations
    I = F[tex]\Delta[/tex]t = [tex]\Delta[/tex]p
    Motion formulas

    3. The attempt at a solution
    Did not know how to approach problem

  2. jcsd
  3. Mar 15, 2008 #2

    Doc Al

    User Avatar

    Staff: Mentor

    First solve the projectile motion problem: How fast must the cricket leap at the given angle to reach 2.2m?

    Then you can worry about the needed impulse.
  4. Mar 15, 2008 #3
    Thanks I got it now.
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