A unifrom disc of radius `R`, is resting on a table on its rim. The coefficient of friction between disc and table is `mu` Fig. Now the disc is pulled with a force `F` as shown in the Fig. What is the maximum value of `F` for which the disc rolls without slipping ? A. `F_(max)=3 muMg`B. `F_(max)=muMg`C. `F_(max)=5muMg`D. `F_(max)=5 Mg`

A unifrom disc of radius `R`, is resting on a table on its rim. The co

1.	A unifrom disc of radius `R`, is resting on a table on its rim. The coefficient of friction between disc and table is `mu` Fig. Now the disc is pulled with a force `F` as shown in the Fig. What is the maximum value of `F` for which the disc rolls without slipping ? A. `F_(max)=3 muMg`B. `F_(max)=muMg`C. `F_(max)=5muMg`D. `F_(max)=5 Mg`
Answer» Correct Answer - A `fR=Ialpha` `=(1/2MR^(2))a/R` `:. F=F//3` `f`=frictional force `F`=pulling force

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