M1R 2m 3m 2d d A B m C m D M d 2d ( )( )( )223342GmMGmMdd=( )( )( )2222GmMdd=( )( )( )221Gm MGmMFdd==( )( )( )22142GmMdd=M2Astronomy 103 Class Exercise: Newton’s Law of Gravity Part 1:Newton’s Universal Law of Gravity describes the attractive force F between point masses M1and M2separated by distance R. Note that due to Newton’s 3rdLaw, both masses experience this force (in different directions). What would the value of the gravitational force be in terms of F if: a)the mass of M1was doubled – doubledb)the mass of M2was halved – halvedc)the mass of M1was halved and the mass of M2was doubled – samed)the masses of M1 and M2was doubled – quadruplede)the separation R was doubled – quarteredf)the mass of M1was doubled and the separation R was doubled
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This document was uploaded on 10/27/2011 for the course ASTR 104 at UNL.