IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => GCE AS & A2 Level => Queries => Topic started by: mayyoya92 on October 19, 2009, 12:48:05 pm

Title: mechanics after TOMMORROW!!
Post by: mayyoya92 on October 19, 2009, 12:48:05 pm

i'm terrified from head to toe cuz mechanics exam's after to...mmo..rrow!! :o :o :o

Title: Re: mechanics after TOMMORROW!!
Post by: mayyoya92 on October 19, 2009, 05:44:45 pm

please i need someone to discuss with me question5 in past paper 4 mechanics 1 cie nov2006

Title: Re: mechanics after TOMMORROW!!
Post by: nid404 on October 19, 2009, 05:50:10 pm

could you put the question here.....i'll try

Title: Re: mechanics after TOMMORROW!!
Post by: astarmathsandphysics on October 19, 2009, 06:05:37 pm

It is conservation of energy. Is there a particular part you want to ask about?

Title: Re: mechanics after TOMMORROW!!
Post by: mayyoya92 on October 19, 2009, 06:27:38 pm

i don't know how to get kinetic energy at N

Title: Re: mechanics after TOMMORROW!!
Post by: astarmathsandphysics on October 19, 2009, 06:32:16 pm

Use mg(h at L minus h at N)
This will be the loss of potential energy going from L to N which will be changed into Kinetic energy

Title: Re: mechanics after TOMMORROW!!
Post by: mayyoya92 on October 19, 2009, 09:21:23 pm

thank you very much :D

Title: Re: mechanics after TOMMORROW!!
Post by: sanity_master on October 19, 2009, 11:13:38 pm

r u gonna panic before every math exam? :P :P (jk) :) :D

if u have any other questions....we r always here to help....:D

Title: Re: mechanics after TOMMORROW!!
Post by: preity on October 20, 2009, 12:45:03 am

hey guys..if the ques says tat assume there is no resistance to motion wat does tat means?can smone pls explain?

Title: Re: mechanics after TOMMORROW!!
Post by: 123 on October 20, 2009, 07:22:51 am

Quote

Posted by: preity

hey guys..if the ques says tat assume there is no resistance to motion wat does tat means?can smone pls explain?

What do u think resistance to motion means??

Look up resistance in the dictionary....then add no in front of definition.
What does assume mean?

Try explainin to urself then! hope it helps!  ;D

Title: Re: mechanics after TOMMORROW!!
Post by: astarmathsandphysics on October 20, 2009, 07:42:04 am

It means no friction or air resistance