P. 3860. There is a semi-cylinder of radius R and mass M at rest on a horizontal table. On the top of the semi-cylinder there is a small cube of mass m=M/2. What is the force exerted by the sliding cube on the semi-cylinder in the position of
=30o if a) the semi-cylinder is fixed?
b) if the semi-cylinder can slide along the table without friction?
Deadline expired on 13 February 2006.