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: Motion in the planes

  1. Jan 10, 2010 #1
    1. The problem statement, all variables and given/known data

    a basketball player jumped straight up to grab a rebound. if she was in the air for 0.80 second how high did she jump?

    2. Relevant equations

    i know the time but i dont know which equation to use

    3. The attempt at a solution

    i dont know how to solve yet
  2. jcsd
  3. Jan 10, 2010 #2
    0.8 = time to go up(t1) + time to come down(t2)

    t1 = t2 = 0.8/2 (should be right)

    vertical distance traversed use equation of motion

    s = ut + 0.5at^2

    can you go on from here?
  4. Jan 10, 2010 #3


    User Avatar
    Science Advisor
    Homework Helper

    Try s = 0.5 a t2, where a is the acceleration.
    Given the time and acceleration (what is it?) you can find the largest distance (which is the top of her jump).
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook