OMG! Physics p22!!!

[samir]

hey in finding young moudoulus do v have to take highest value of stres nd strain or frm staraight line where it endz..tel me..

no u use the straight line part...

 

[ashhadazam]

didn't have time to recheck it!!!!!! other wise i would have corrected my MISTAKES!!!! yeah i too will get 50 or 50+ INSHALLAH ....but ...overall...it went veyyy bad!!!:-(

50+ isnt VERY BAD... it isnt even bad

 

[samir]

dude 50 up is A VERY GOOD.......and why the heck are physics pprs 1 hr they should be 1hr 15 mins for gods sake........neways.....by da way how many marks was electricity i rushed through it dont noe the markin for each......

 

[beacon_of_light]

well for compensation in paper 1 and paper 3 ..55+ are a good score...and p2 has the highest weightage!!!

 

[beacon_of_light]

exactly 0.4 and 0.028 i got neways thats awesome wat more is awesome beacon of light is that i got center as 0.135 and V as 0.675.....similar i guess....hmm do u think we are right...and yea the next 2 marker i pretty much guessed in theory god noes wat......ughh...

well can be good luck or bad luck...cos either v both would be correct or both of us wuld be wrong!!! Lets hope for the best!!!

 

[samir]

well for compensation in paper 1 and paper 3 ..55+ are a good score...and p2 has the highest weightage!!!

yea i agree....but still i bet threshold for dis ppr may go to less than 40.......who nows hmm....neways by the way how much do u think ur electricity question is rite cos if urs rite mine rite

 

[laviva]

what about the last part of the photograph question?? and in the momentum question did u need to calculate the change in momentum?? and was it 7Ns?

 

[tricky]

wat was da conditions for s=1/2at^2???????

 

[gentleman]

hello guys
what where the definitions that came in the paper
reply please

 

[samir]

oh i didnt see the reply but do u noe otthers who did the same thing.......any idea......and someoe said the last 2 marker is bcos of the best fit line are u sure abt that.......hmm i did some random guess since its half should be 0.75....energy is lost.....this WAS A TOTAL GUESS IN 10 SECS SO PLEASE DONT LAUGH.......

 

[ashhadazam]

wat was da conditions for s=1/2at^2???????

COnstant acceleration.
body should start from rest or initial velocity 0

 

[beacon_of_light]

I confirmed it with my class and all had the same answer to electricity qstn!!!

@laviva...dn't remeber much but yeah we had to calculate momentum of B after collision and it was +5Ns...so I drew the graph according to this...

@tricky....i wrote acceleration shuld be consatnt and initial velocity to be zero..wht bout others?

 

[intel1993]

hey paper went awsom for me expecting 55 or 55+

 

[ashhadazam]

umm i wrote 7 for the collison one..... !!! canculated change in momentum rather than total momentum !!! wonder how much i am going to lose for this :s

 

[ashhadazam]

hey paper went awsom for me expecting 55 or 55+

Cool bro... !! The same couldnt be said for many of us here :mrgreen: :mrgreen:

 

[wasiqss]

hey in finding young moudoulus do v have to take highest value of stres nd strain or frm staraight line where it endz..tel me..

Just at brink where st line was ending,young modulus was prolly 1.1*10^11/10

 

[ashhadazam]

well u had to take values drom the straight line part.. and ya i gt the same for young's modulus.. !!

 

[DDGAL]

hey there was this ruber and tyre question? how much mark was it? and what bout the stres strain sketch???? how do u do it??? and how much mark did that momentum quwstion had??

 

[ashhadazam]

If u r talking abt the graph one .. it was of 3..

 

[beacon_of_light]

rubber n tyre part had 3 marks....and that was easy..since all ebergy is not recoverable as shown by the area b/w the 2 curves..so it was work done on sample and heated it up...sample is tyre...