Register to reply

Laplace Transform question

by ehanes7612
Tags: laplace, transform
Share this thread:
ehanes7612
#1
Nov23-12, 01:40 AM
P: 3
this one stumped me..

d^2y/dt^2 +ωy=ksin((√ω)t)

y(∏/4)=0, y'(∏/4)=0

the left hand side is easy and i understand that i need to convert T=t-∏/4, therefore replace t with T+∏/4..but the (√ω) throws me off ..tried trig identities but just gets more complicated

→ (s^2 + ω)U(s)= LT {ksin((√ω)(T+∏/4)} is as far as i can get (i know what to do with the left hand side once i get the LT of the right hand side but i dont know what to do with the sin value)
Phys.Org News Partner Science news on Phys.org
Mysterious source of ozone-depleting chemical baffles NASA
Water leads to chemical that gunks up biofuels production
How lizards regenerate their tails: Researchers discover genetic 'recipe'
LCKurtz
#2
Nov23-12, 02:52 PM
HW Helper
Thanks
PF Gold
LCKurtz's Avatar
P: 7,630
This is a duplicate thread to

http://www.physicsforums.com/showthread.php?t=654194


Register to reply

Related Discussions
IVP Laplace Transform Problem - Tricky Inverse Laplace Transform Calculus & Beyond Homework 5
Laplace Transform question Calculus & Beyond Homework 3
Laplace transform question D: Engineering, Comp Sci, & Technology Homework 0
Laplace Transform Question Calculus & Beyond Homework 0
Laplace Transform question Calculus & Beyond Homework 3