A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 one year ago
A 240g particle oscillating in SHM travels 31cm between the two extreme points in its motion with an average speed of 90cm/s.
b) The maximum force on the particle.
Can't figure that one out :/
 one year ago
A 240g particle oscillating in SHM travels 31cm between the two extreme points in its motion with an average speed of 90cm/s. b) The maximum force on the particle. Can't figure that one out :/

This Question is Closed

Natan
 one year ago
Best ResponseYou've already chosen the best response.0(b) In this case the force is equal to F=kx, F=kx. If k =const. the maximum force is when x is maximum.

BoneFreeze
 one year ago
Best ResponseYou've already chosen the best response.0Natan is right k=mg/h and since Fmax = kh = mg/h *h = mg =0.24*Acceleration due gravite (9.8 m/s2 or something like that)

Natan
 one year ago
Best ResponseYou've already chosen the best response.0yes. that is right. please can you tell me about the letter a .

MarcLeclair
 one year ago
Best ResponseYou've already chosen the best response.0That doesnt work though I tried, in letter A i got the answer right I did t=1/f therefore t=2pi/w which is in turn w=9.26. Knowing the mass is .240 kg you can find out k being 20.56 no? and I get fmax = 15.5cm * 25.56 (15.5cm being the Xm)

Natan
 one year ago
Best ResponseYou've already chosen the best response.0that is fmax=20.56*15.5. what is the question in letter a?

MarcLeclair
 one year ago
Best ResponseYou've already chosen the best response.0oh my bad Its this : The angular frequency.

MarcLeclair
 one year ago
Best ResponseYou've already chosen the best response.0find the angular frequence* which i found with the t=1/f

MarcLeclair
 one year ago
Best ResponseYou've already chosen the best response.0In a i have to find the angular frequency, the w of the following equation x=Asin(wt+ alpha) alpha being the phase constant.

MarcLeclair
 one year ago
Best ResponseYou've already chosen the best response.0I found my W using the fact that frequency is T ( period) = 1/f and therefore T=2pi/w

Natan
 one year ago
Best ResponseYou've already chosen the best response.0it is OK. Now I urderstood. k=w^2*m

Natan
 one year ago
Best ResponseYou've already chosen the best response.0in letter b you got the correct answer

MarcLeclair
 one year ago
Best ResponseYou've already chosen the best response.0yeah so k = 9.26^2 * .240g which gives me 20.56 but it always gives it wrong to me :/ could it be the sign?

MarcLeclair
 one year ago
Best ResponseYou've already chosen the best response.0so f=kx therefore my amplitude is 31/2 so f = 20.56 *.240 no?

MarcLeclair
 one year ago
Best ResponseYou've already chosen the best response.0yeah sorry and it g ives 319 but it says its wrong, I don't know what to do to change it
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
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.