AP Physics free response practice help

Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
Sign up Log in
59 replies · 10K views
harmonicmotion
Messages
51
Reaction score
0

Homework Statement



Homework Equations





The Attempt at a Solution

 

Discussion

Physics news on Phys.org
http://http://www.collegeboard.com/prod_downloads/ap/students/physics/physics_c_m_frq_02.pdf

PLEASE HELP
 
Last edited by a moderator:
1. You must state the problem
Yes, that means posting the problem here. At Pf.

2. You must show your own work.
 
http://http://www.collegeboard.com/prod_downloads/ap/students/physics/physics_c_m_frq_02.pdf"
 
Last edited by a moderator:
its the first question
 
the second link works i think
 
can you try it and let me know if i should type it
 
Okay second link works, so what have you done so far? :smile:
 
are you still there
 
Indeed, what have you done so far?
 
i did a) and got 500 kg
 
This isn't a chat room, it takes a few minutes before you get responses.
 
on b i am trying to integrate and got x=(8/5)ln{1+5t}
 
i really do not think that is correct though
 
on a)+b), you are correct.
 
harmonicmotion said:
i really do not think that is correct though

But it is.
 
is integration the wrong method?
 
oh ok thank you, I am having trouble with c and d though
 
harmonicmotion said:
is integration the wrong method?

Eeh, do you even take time to read the replies you get??

Slow down a bit, will you?
 
what is the best method to use
 
harmonicmotion said:
oh ok thank you, I am having trouble with c and d though

Ok, now, is there some other quantity you can calculate by means of which you can calculate the force acting upon the object?
 
I'm sorry i think my computer is on delay because the messages don't come up until after i send something else
 
mass times acceleration?
 
harmonicmotion said:
mass times acceleration?

Agreed!

So, how can you find acceleration? (you already know mass)
 
hdhdkshhfsdhkf
 
dv/dt? could that be used?
 
harmonicmotion said:
dv/dt? could that be used?
Sure!
Isn't that what acceleration is, after all?