8- The Atwood’s machine shown in the diagram below is composed of a frictionless lightweight pulley with two masses connected by a massless rope. Assuming weight A is 16,000 lbs :
a) If the maximum allowable tension in the cable is 20,000 lbs, what is the maximum allowable upward acceleration? (3 points)
b) Calculate the tension in the cable and the acceleration of the system if weight B is 18000 lbs. (3 points
