M1 has a mass of 6.330 kg. It is on a horizontal surfaceconnected by a massless string to a hook where M2 can be increasedsmoothly. The pulley has a negligible mass & no friction. WhenM2= 3.266 kg it begins to accelerate downward at a rate of 2.110m/s2. Calculate us - uk between M1 and thesurface.
