Re: Question for Amit
Posted by Amit Dave on June 05, 2010 at 02:25:59:

Brain
Gravitational pull and tidal force are two different things.Gravitational pull of Moon to earth is same both ways and is equal to product of masses (considering both as point masses)divided by square of the distance(Newtons law)
However tidal force is a differential vector pull caused by radius of the planets

(m1*m2)
F=G --------- for farthest point
2
(R+w)

where R is center to center distance and w s radius of earth
2
For point closest to Moon it is (R-w)in the formula.
Since earth have greater radius the differential force is 3.5 times.Thus Moon tidal force on earth is 3.5 times Earths tidal pull on MOon
Regards


Follow Ups:
     ● Re: Question for Amit - EQF  01:46:01 - 6/6/2010  (77166)  (1)
        ● Re: Question for Amit - Amit Dave  10:36:33 - 6/7/2010  (77168)  (1)
           ● Re: Question for Amit - EQF  14:01:09 - 6/7/2010  (77169)  (1)
              ● Re: Question for Amit - Roger Hunter  16:28:31 - 6/7/2010  (77170)  (1)
                 ● Re: Question for Amit - EQF  17:45:32 - 6/7/2010  (77171)  (1)
                    ● Re: Question for Amit - Amit Dave  06:40:59 - 6/8/2010  (77174)  (2)
                       ● Re: Question for Amit - EQF  04:36:37 - 6/9/2010  (77178)  (0)
                       ● Re: Question for Amit - Skywise  22:15:39 - 6/8/2010  (77175)  (1)
                          ● Re: Question for Amit - Amit Dave  00:48:17 - 6/9/2010  (77177)  (1)
                             ● Re: Question for Amit - Skywise  11:10:19 - 6/9/2010  (77179)  (0)