
QUESTION 1 two cylindrical rollers are placed in contact with one other [bigger one with diameter D placed first and smaller one with diameter dafterwards] on a horizontal plane. A force is appplied on the top most point of the bigger roller. the friction cofficient µ has same value for all sufaces. Determine limits of µ so that the larger roller can be pulled over smaller one. ANSWER µ≥√D/d
QUESTION 1 two cylindrical rollers are placed in contact with one other [bigger one with diameter D placed first and smaller one with diameter dafterwards] on a horizontal plane. A force is appplied on the top most point of the bigger roller. the friction cofficient µ has same value for all sufaces. Determine limits of µ so that the larger roller can be pulled over smaller one. ANSWER µ≥√D/d




