a) Design a ladder diagram with two stop push button switches and two start push button switches for the control of two three-phase induction motor. The motors must be started in sequence, Motor #1 followed by Motor #2. The circuit must insure that motor #2 cannot be started unless Motor #1 is running.

b) Add an emergency stop button to the prior ladder diagram that when pressed will stop both motors.

c) Add indicator lights to the prior ladder diagram to indicate when each motor is running.