one in gravitation

A body of superdense material with mass twice the mass of earth butsize very small compared oto the size of earth starts from rest from h<<R above the earth's surface. It reaches earth in time

186 Answers

11
Anirudh Narayanan ·

Yes, akand. It is pronounced as " baadhonoo" and i'm not telling the meaning!

1
greatvishal swami ·

ohh cmon aragorn !!!!
bt its nt ur fault Mr AKAND forced ,u if i m rite

1
Akand ·

yup vishal.................from earths frame of reference , earth is rest and d mass comes within time t=√h/g..
and from d mass's frame of reference earth will cum toward it.....i think it shud be same or there cud be a difference....(i dunno this).
but if i see from d frame of ref of d universe....then both will move a bit(as h<<R), so time will be literally less than √h/g.......

11
Anirudh Narayanan ·

If you were to take earth as the frame, will net acceleration be 4g?
Because acc. of body towards earth is 2g and that of earth towards body too is 2g. So acc. as taken frm earth is 2g+2g=4g.
Correct?

1
Akand ·

cum on.........i was just learning tamil and these guyz are teachin me bad words..............waaaahhhh

3
msp ·

when two particles under mutual attractive force will they meet only at the center of mass of the twoo particles

1
Pavithra Ramamoorthy ·

a good quote:::

TRUE FRIEND IS 1 WHO

1.)FORGIVES U B4 U SAY SORRY...

2.)UNDERSTANDS B4 U EXPLAIN....

3.)WAITS 4EVER WEN U SAY 1MIN.........

4.)STAYS ON WHEN U SAY LEAVE ME ALONE......

SO UNDERSTAND DIS PROBLEM B4 I EXPLAIN IT..........

1
greatvishal swami ·

************editing
yup aragorn i m getin somthing like this in ma expression
i usedforce
F btw masses=2GM2/(h+R+R')2

1
Pavithra Ramamoorthy ·

SANKARA PANDI...... STARTED D SAME THING AGAIN...........THINK IN SOME OTHER (THETA)

1
greatvishal swami ·

stop playing with words ram

so u told us the rong ans

3
msp ·

in classical mechanics the time interval between two events is the same for all reference fram

1
Pavithra Ramamoorthy ·

NO VISHAL...... IT MUST B GM2/R

11
Anirudh Narayanan ·

Is it not F=2GM2/R2?

3
msp ·

in classical mechanics the time interval between two events is the same for all reference fram

1
Akand ·

aaaaaaaaaaaahhhhhhhhhhhhhhh.............im confused.........i thought this was a simple question..........ARE MY BASICS THAT BAD????????????

1
greatvishal swami ·

wow guys we can make dis thread the longest

1
Pavithra Ramamoorthy ·

HEY .. VISHAL SORRY.. I M SERIOUS NOW.. AND U VE TAKEN MA JOB NOW.......??????????

1
Akand ·

SOULDNT the force be f=M(2M)/(r+h)2????????? and if h is neglected then everythings fine.......

1
greatvishal swami ·

********editing
@ram & aragorn
frm where dat R came
its h dat is ditance btw 2 objects

*****sry R has to b there

3
msp ·

hey akand can u reply for my doubt I am in great confusion in that thing

11
Anirudh Narayanan ·

R is radius of earth, yaar.

1
Akand ·

ya vishal shudnt tht be distance between d centre of masses of 2 objects??? So it is R+h

3
msp ·

hey akand can u reply for my doubt I am in great confusion in that thing

1
greatvishal swami ·

@ sankar
which 2 events dude only 1 event is taking place here

1
Akand ·

ya thts true sanki.........thts in classsical mechanics...........we wer just talkin bout relative refe........as both r moving we need to take relatively.......

1
greatvishal swami ·

sry guys just carried away a bit its(h+R+R')

R'=radius of other planet

1
Pavithra Ramamoorthy ·

CAN ANYONE PLZ GET A SMALL SKETCH OF IT?????????????????

1
Pavithra Ramamoorthy ·

THEN THERE LL B NO CONFUSION ON WAT IS R N WAT IS H??????????????????????????????????????????????????????????????????????

1
Akand ·

and vishal isnt R' negligible(its given in d ques)..........its very small...........so R+R'+h is almost R+0.000000000000001. which is almost equal to R

11
Anirudh Narayanan ·

@ vishal

THe other one's not a planet. It's size is actually negigible when compared to earth's size. Is made up of superdense material!

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