front. Thesameprinciplesapply for upwardsanddownwards -addweight in the directionyouwant tomove, or takeit awayfrom‘behind’. Notice that the reference point
is thecentreof gravity, not necessarily the riser itself, though inmost cases
weightsareaddedso far out as tomake thedistinctionunimportant. But remember
whenaddingweight veryclose tothe riser that thecentreof gravitymaynot change
Exercise1: Without stabiliser weights fitted, suspendyour ownbow fromthe top
nock. Notewhether theverticalline fromthesuspensionpoint falls. Isit in front
of, or behind, thegrip?Nowsuspend thebow fromthestring, near thegrip.
Exercise2: Fit your normal stabiliserweightsand repeat theexerciseabove.Where
is thecentreof gravitynow?Experiment withdifferentweight combinations tosee
howfar different weight arrangementsmove thecentreof gravity.
Weights and Distances - ‘Moment’
Thebalanceofthebow,orthepositionofthecentreofgravity,canalsobe understoodin termsof the‘moments’of alltheweightsin thesystem (including the riser,
limbsetc.The‘Moment’of a forceabout apoint is the forcemultipliedby the
distance to thepoint (measuredat right anglesto thedirectionof the force). For
understandingbalance, this isalmost easy; all the forcesaredownwards, soall
that mattersishow far away fromthesuspensionpoint theweightsare, andhowheavy