Question

(2) The gravitational force of attraction between
the moon (mass 7.36 x 1022 kg) and the earth
(mass = 5.96 x 1024 kg), taking the distance of moon
from the earth to be 3.80 x 108 m, is​

Answer 1

Gravitational force F between earth and moon is given by,  begin mathsize 12px style F space equals space G space cross times fraction numerator M subscript e space M subscript m over denominator R squared end fraction space space................. left parenthesis 1 right parenthesis end style

where G = 6.674×10-11 is gravitational constant,

          Me  is mass of earth, Mm is mass of moon and R is radius of curvature

 

Hence begin mathsize 14px style F space equals space 6.674 cross times 10 to the power of negative 11 end exponent cross times fraction numerator 5.96 cross times 10 to the power of 24 cross times 7.36 cross times 10 to the power of 22 over denominator open parentheses 3.8 cross times 10 to the power of 8 close parentheses squared end fraction space N space equals space fraction numerator 6.674 cross times 5.96 cross times 7.36 over denominator 3.8 cross times 3.8 end fraction cross times 10 to the power of 19 space N space equals space 20.27 cross times 10 to the power of 19 space N end style

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Answer 2

Answer:

Gravitational force F between earth and

moon is given by, begin mathsize 12px style

F space equals space G space cross times

fraction numerator M subscript e space M

subscript m over denominator R squared

end fraction space SPACe.cooooccccnoon... left

parenthesis 1 right parenthesis end style where G = 6.674x10-11 is gravitational

constant.

Me is the mass of earth, Mm is mass of

moon and R is radius of curvature

Hence begin mathsize 14px style F space

equals space 6.674 cross times 10 to the

power of negative 11 end exponent cross

times fraction numerator 5.96 cross times

10 to the power of 24 cross times 7.36

cross times 10 to the power of 22 over

denominator open parentheses 3.8 cross

times 10 to the power of 8 close parentheses

squared end fraction space N space equals

space fraction numerator 6.674 cross times

5.96 cross times 7.36 over denominator 3.8

cross times 3.8 end fraction cross times 10

to the power of 19 space N space equals

space 20.27 cross times 10 to the power of

19 space N end style