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: Rocket Launch question

  1. May 29, 2010 #1
    1. The problem statement, all variables and given/known data
    A rocket of mass 0.5kg is shot vertically and burns for 1.5s, providing a constant force of 22N.


    After 1.5s what is the height of the rocket above the ground?


    3. The attempt at a solution

    by taking m*g of the rocket (downwards force) away from the 22N force (upwards).
    I figured the resulting upwards force = 17N

    unsure how i use this to get the maximum height though
     
  2. jcsd
  3. May 29, 2010 #2

    rock.freak667

    User Avatar
    Homework Helper

    Start with a free body diagram. What are the forces acting on the body? What is the resultant of these forces?
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook