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!

Trig question

  1. Nov 6, 2014 #1
    1. The problem statement, all variables and given/known data
    h(t) = 3 + 2sin(0.5236t)
    h = depth in meters (water)
    t = number of hours after 7

    1) A certain ship can only enter the harbor if the depth is 4.5m or more. For how long can this ship stay at the harbor?

    2. Relevant equations

    3. The attempt at a solution
    I tried getting both of the sine solutions 1.619 and 2.293. I substracted the former from the latter but that didn't work. Can anyone point me in the right direction?
  2. jcsd
  3. Nov 6, 2014 #2


    User Avatar
    Homework Helper

    You forgot to divide 2.293 with 0.5236.
  4. Nov 6, 2014 #3


    User Avatar
    Homework Helper

    Write out your solution in full detail next time, to show how much work you have done. :)
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted

Similar Threads - Trig question Date
Trig question Oct 17, 2016
Basic Trig Problem Jun 11, 2016
Quick Trigonometric Identity Question May 8, 2016
Precalc Trig Arc Length Question Jan 11, 2015
FE Trig Question Jul 10, 2014