The potential energy fn!tion for the for!e "et#een t#o ato$%in a
&ia$eter $ole!le i% appro'i$ately gi(en "y )*'+ , a'./-"'0 1
#here a an& " are !on%tant% an& ' i% the&i%tan!e
"et#een the ato$%2 If the &i%%o!iation energy of the$ole!le%
i& D , 3) *' , 4+ 5 ) at e6ili"ri$71 D i%
A trolley of $a%% =:: @g !arrying a %an&"ag of /9 @g i%
$o(ingnifor$ly #ith a %pee& of / @$h on a fri!tionle%% tra!@2
Aftera #hile1 %an& %tart% lea@ing ot of a hole on the Boor of
thetrolley at the rate of :2:9 @g %5.2 What i% the %pee& of
thetrolley after the entire %an& "ag i% e$pty *a+ /.K$h *"+
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