1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Projectile motion velocity homework

  1. Sep 11, 2006 #1
    my problem says:
    a projectile is fired with an initial speed of 75.2 m/s at an agle of 34.5 degrees above the horizontal on a long flat firing range. i figured out everyting so that

    y initial = 0
    y = 92.6m
    Vy initial = 42.6 m/s
    Vy = 0
    g = 9.8 m/s^2
    t = 8.69 s
    Vx = 62 m/s

    the question asks for the volocity of the projetile 1.50 s after firing. how do you go about figuring that out?
     
  2. jcsd
  3. Sep 11, 2006 #2

    rcgldr

    User Avatar
    Homework Helper

    Assuming a vacuum here, and a flat earth, the horizontal component remains constant, so you can ignore it for the moment, and concentrate on the vertical component of velocity and acceleration (which only has a vertical component anyway in this case). After you've done this, then re-include the horizontal component of velocity.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook




Loading...