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my doubt is how to start i mean in first part x=asinwt
no shankvee its not the ans by the way and u dont jhave to solve till i ask u ..ok u just have to make correction in my ans or clear my doubts dat i m facing in ques
ok ok very sorry. :D
yeah so in first part half of extreme would be A/2. Then find time.
np.. well here extreme means A rit and half of extreme is said to be A/2 so A/2=Asin wt sinwt=/2 sinwt=pie/6
nw from extreme to mean i m not gettin how to do this part
i mean give me hint dont solve
Whatever time it takes from mean to extreme its same for reverse journey.
no its not and how can be it will be same imagine there is air ressitance force is also there which slows down the speed
i remeber when i used pendulum timing is not same in practicals
Ok lets see (Air resistance does not matter This is ideal case.)
as velocity decreases due to time increases
shm means that we have to neglect resistive force
Ok so if you calculate time to reach from mean to extreme then you get wt=pi/2. Now time taken to reach from mean to mean again, would be wt=pi. Think about it. subtracting the two would give wt=pi/2 so it turns out to be same.
but then dont u think pendulum will have same KE in all position??
No KE isn't same as PE varies( Conservation of mechanical energy). Total mechanical energy will reamin same.
thats wat i m saying velocity differs due t which KE also differs
Wait what are you asking?
time period from half of extreme to mean
Well here |dw:1328375754735:dw| Now here particle will first move from half of mean to extreme and then from extreme to mean. Calculate each time seperately.
luk wen it is going from mean to half extreme time period is T/12 wen it goes from half of extreme to mean its timeperiod is T/6
yes........ that is correct
yea i get it means we have to do t=T2-T1 t=T/4 - T/12 t=T/6
u are right partially t = T/-8
You asked me time for extreme to mean and i told you it'll be same as from mean to extreme....
Hold on your equation are wrong anuway the time is T/12 only.
yea but wen we go from mean to extreme time period is T/12 and from mean to xtreme T/4 and time period from half extrreme to mean is T/6 luks value is different
i done this by luking ur duagram shown by u
It isn't T/4-T/12. That would be time from extreme to half of mean i'm talking of mean to half of extreme.
Wait wait hold on go slow.
and by the way yash calulate agin it will come T/6
What i'm saying is |dw:1328376302162:dw| time taken from A to B is same as B to A as in it goes directly from B to A not from B to C then to A.
mean to half we will get T/12 ok nw pendulum is not stop there it goes to mean so time period we calulate is the whole displacement from mean to extreme right now we have to see time period from half extreme to that mean
I'm sorry, i'm running really late i need to go, i'll reply tomorrow.
ok bye nd thnx for ur help
Did you get it???
yea i get and today i given my exam it was awesome but after as u gone due to some mischeif happen here so i m unable to study more my concentration gone but anyway paper goes well .. and now i got holiday finally after a long time and now i m soon going back to home :PP happy a lot ..