8 which is directly connected to the drum 9 and rotates it the washing machine also includes a hanging spring 4 which functions as a support between an inner top of the cabinet 5 and an outer top of the tub 3 in order to reduce vibration of the tub 3 the washing machine includes a friction damper 10 provided between an inner bottom of the cabinet 5 and the outer bottom of the tub 3 in addition the washing machine includes a motor sensor 11 which measures a number of the rotor 8 rotation which represents the speed of the motor 6 fig2 is a flow chart illustrating a method of controlling a spinning operation of the washing machine shown in fig1 according to one embodiment of the present invention according to fig2 a microprocessor not illustrated of the washing machine initially increases the rotational speed of the tub 3 from zero to a second predetermined speed it then measures an acceleration time that it takes for the rotational speed to reach the second predetermined speed from zero finally it determines the load weight of the wet clothes based upon the measured acceleration s 201 measuring the load weight of the wet clothes improves the performance.