P. 4341. A long slope of angle of elevation is made of solid rubber cylinders which can easily revolve about their fixed axles. The rollers, which have mass of m and radius R, are close to each other, but they do not touch each other. To what maximum speed can a crate of mass M be accelerated? (The coefficient of friction between the crate and the rollers is big enough.)
Deadline expired on 10 May 2011.