In the figure, two masses, each 24 kg, are at rest and connected by the pulley. the pulley is massless and frictionless. Use Energy and work to find. a) the speed of the masses after thay have moved 1.6 m assumming the surface is frictionless. b)the speed of the masses after they moved 1.6 m assumming the coefficient of kinetic friction between the inclined surface and the mass is 0.31. Angle is 30 degree.