Lab Quiz 6

Page 2 of 2 Previous  1, 2

Go down

question 3

Post  tofu lov on Mon Nov 10, 2008 4:13 am

tofuuu thank youuu!! Smile

tofu lov
Guest


Back to top Go down

ques 2

Post  guest23 on Mon Nov 10, 2008 10:57 am

what is the disk constant used for ques 2?

guest23
Guest


Back to top Go down

q2

Post  nerda on Mon Nov 10, 2008 4:50 pm

I'm having trouble with #2. i did .5 (m)(r^2) am I missing something.

nerda
Guest


Back to top Go down

q2

Post  Fisica on Mon Nov 10, 2008 4:53 pm

Need help with question 2 plzz this is what I used
.5*m*r^2

Fisica
Guest


Back to top Go down

q2

Post  k on Mon Nov 10, 2008 6:46 pm

Just make sure the radius is in meters and the mass is in kg. and do .5*m*r^2 ...if that doesnt work again post your question

k
Guest


Back to top Go down

Re: Lab Quiz 6

Post  student on Mon Nov 10, 2008 7:26 pm

why we use I=mg/(alpha fric+alpha) instead of the given formular I=mr(g-ra)/(afr+a)??

student
Guest


Back to top Go down

Re: Lab Quiz 6

Post  Guest01 on Tue Nov 11, 2008 4:57 am

I'm almost positive my calculations are correct, but Maple keeps saying it's wrong, here are my numbers and calculations:
mass = .2 kg
radius = 2.5 cm = .025 m
% = 1.25
a = 0.268
af = -0.177

so

(1.25/100)*.025 = 0.0003125

(.2*9.81)/(|-.177|+.268)
1.962/.445
= 4.4089888

4.4089888*0.0003125
= 0.001377809

Guest01

Posts : 133
Join date : 2008-09-19

View user profile

Back to top Go down

Re: Lab Quiz 6

Post  Guest01 on Tue Nov 11, 2008 5:03 am

Okay I know those calculations are correct but for some reason Maple TA did not like it. I took it again and it worked.

Guest01

Posts : 133
Join date : 2008-09-19

View user profile

Back to top Go down

question 3

Post  helpful on Wed Nov 12, 2008 2:29 pm

this is the exact thing i did and got it right.

I = mr(g-(radius*a)) /(|afric|+a) .... the absolute sign in the denominator is a must dont forget it and dont forget to convert the radius to meters.

then simply divide your % for radius by 100.

then multiply that by what youu got for I.

helpful
Guest


Back to top Go down

Re: Lab Quiz 6

Post  Sponsored content


Sponsored content


Back to top Go down

Page 2 of 2 Previous  1, 2

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum