[exam problem] angular momentum problem
A particle of mass m travels in a horizontal circle of radius R on a frictionless table. The centripetal force is provided by a string passing through a hole in the table attached to two blocks of equal mass M, as shown in the figure. If one hanging block is removed, what will the radius of the particle motion become?
My answer is 3/2R, and the correct answer is 2^(1/3)*R......How to count?
