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How to Find initial Velocity at 90 degrees with only a time variable given

  1. Sep 5, 2008 #1
    I am given the information that a nerf dart is launched upwards at a 90 degrees with the top of the launcher at 1.953ft and that it hits the ground .43 seconds later. I am then tasked with finding the initial velocity of the launcher and I have no idea where to start.
  2. jcsd
  3. Sep 5, 2008 #2


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    Welcome to PF cloakblade5,

    You must have some idea as where to start, which concept(s) are involved? What are the relevant equations?

    Please be aware the according to our forum guidelines, you are required to post an attempted solution when asking for homework assistance.
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