A 60-kg mass sits on a level frictionless table. Two forces are applied to the mass at the same time. The first has a magnitude of 20 N and an angle of 20 degrees North of East. The second has a magnitude of 45 N and an angle of 13 degrees East of South . What is the resultant acceleration of the mass? a.) What is the net force acting on the mass? b.) what is the resultant acceleration of the mass?