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question is very easy .so if any error exist it is due to calculation else i m a 100% error free man
mgsin@-f=ma
fr=IA
a=RA
mgsin@-iA/R=ma
mgsin@-iA/R^2=ma
a=mgsin@/(m+i/r^2)
a=2gsin@/3
s=3V^2/4gsin@
if there is an error then tell me........always ready to help others
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