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!

Convert this relation to a function

  1. Jan 12, 2015 #1
    can anyone convert the relation tan y=(Vsin(y)-gx)/Vcos(y) to an explicit function y=f(x) in terms of V, x and g?

    g is a constant
    V is the function V(x)= -aln(b/b-cx)-dx

    a,b,c,and d are also constants.

  2. jcsd
  3. Jan 12, 2015 #2


    User Avatar
    Science Advisor
    Gold Member

    tany = siny/cosy, so unless cosy = 0, you have:
    or go back one step and you have tany = tany - gx/Vcosy.

    In any case, there is no function.
  4. Jan 12, 2015 #3
    I was afraid of that. This relation was supposed to model the angle of attack of a rocket projectile. I guess I'll have to derive a different way of modeling it. Thanks!
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Convert this relation to a function