A disc of mass m ,radius R is shown rolling on horz surface(having sufficient friction).
Variation of electric fields with direction exist along its path as shown in figure
charge on disc=Q
1)Find velocity of disc after very long time
2)predict if it will roll at that instant.
3)Calculate 1,2 for x=R/128
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2 Answers
111........iz????? the answer>>>>>>>>>>
v2=v02+4EQ/3m(2R-R+R/2-R/8........infinity)
where v iz the final velocity,v0 initial velocity
which iz v2=v02+16EQ/9m
