Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
Spring calculation: Acos(wt+phi). How is this derived? And why follows for the deflection: x=(0,100m)*cos (8,08t) ? (D=19,6 N/m; w=8,08s^1 ; T=0,777s and f=1,29 Hz)
 one year ago
 one year ago
Spring calculation: Acos(wt+phi). How is this derived? And why follows for the deflection: x=(0,100m)*cos (8,08t) ? (D=19,6 N/m; w=8,08s^1 ; T=0,777s and f=1,29 Hz)
 one year ago
 one year ago

This Question is Closed

henpenBest ResponseYou've already chosen the best response.2
Hooke's Law. Force=mass*acceleratio n:\[ma=kx\]\[m\frac{d^2x}{dt^2}+kx=0\]\[\frac{d^2x}{dt^2}+\frac{k}{m}x=0\] \[x=Acos(at+b)\]Is a solution to this (that is, when you put it in the equation, it always spits out 0)(you can actually assume that x is an exponential, and you get an imaginary exponent (i.e. trig functions by Euler's theorem), which you take the real part of to get the same answer). I don't quite understand the second question
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.