A circular loop of radius 10 cm and three long straight wires carry currents of I1= 50A, I2 = 80A, I3= 90A, and I4= 70A, and respectively, as shown. Each straight wire is 20 cm from the center of the loop. What is the direction and magnitude of the force exerted on an additional wire (not pictured) with length 0.2 m and carrying current of 40 A into the page which is located at the center of the loop?