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well could u please help me alsowell i got it
Force garvitational= force centripental
GMm/r^2 = mv^2/r
Use M= 1.9891 *10^30
r=1.5*10^11
and find v..wer z prob ??
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well could u please help me alsowell i got it
Force garvitational= force centripental
GMm/r^2 = mv^2/r
Use M= 1.9891 *10^30
r=1.5*10^11
and find v..wer z prob ??
well i got it
Force garvitational= force centripental
GMm/r^2 = mv^2/r
Use M= 1.9891 *10^30
r=1.5*10^11
and find v..wer z prob ??
Why using gravitational force? :/
can u guys give the solution ans is DView attachment 15297
i reached to S=gt1 + 1/2*g*(t2-t1)2
thats the problem i cant expand the bracket there's where i fail can u please expand the bracketsExpand the bracket and u'll get the answer
N y do we need centripetal force? :SBecause the gravitational force provides the centripental force..
Of course u will failthats the problem i cant expand the bracket there's where i fail can u please expand the brackets
N y do we need centripetal force? :S
please give me the correct solution i am damn confused tom is my test pleaseOf 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
Ok thnxBecause centripental force is not a force by itself..but provided by another force for e,g tension friction..etc in zis example is gravitational force
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
It's okI've nt done relative velocity..its nt part of my syllabus sorry
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
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