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Physics: Post your doubts here!

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thats the problem i cant expand the bracket there's where i fail can u please expand the brackets
Of course u will fail

becoz when u replace the initial velocity (gt1) in the eqns S=...
u must replace the time taken also that is gt1(t1-t2)
ur mistake is u replace the initial velocity,u by gt1 and forgot the time taken for the distance travelled.
Now u found ur mistake !!!!!!!!
 
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Of course u will fail

becoz when u replace the initial velocity (gt1) in the eqns S=...
u must replace the time taken also that is gt1(t1-t2)
ur mistake is u replace the initial velocity,u by gt1 and forgot the time taken for the distance travelled.
Now u found ur mistake !!!!!!!!
please give me the correct solution i am damn confused tom is my test please
 
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An aircraft is used on a short horizontal flight on its journey from A to B the resultant velocity of the aircraft is 15m/s in a direction 60 degrees east of north and the wind velocity is 7.5m/s due north.
Show that for the aircraft to travel from A to B it should be pointed due east.

Albert Einstein cn u solve this one too plz
 
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someone plz help with oct/nov 07 p1 Q37
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w07_qp_1.pdf
the answer is C

and does anyone of you has the variable 2 for jun 09? i mean jun 09 p22... plz i really need it :O


Hehe..this question i've tried it by elimination and it wrked out and such types of question often appear in paper 2 as well...
Refering to my notes i've found during nuclear reaction Mass and energy, nuleon number, charge, isospine, momentum, proton number is conserved so by eliminaton i've found neutron number as answer...
 
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