Problem 3: The spring of modulus k-3.5 kN/m is stretched 10 mm when the disk center O is in the leftmost position x=0. Determine the tension T required to position the disk center at x=150 mm. At that position, what force N is exerted on the horizontal slotted guide? The mass of the disk is 3 kg and gravitational acceleration g is 9.81 m/sqs. (20 points) 5 kNm Figure for Problem 3 Hint: 1) This is also particle equilibrium. Here is the FBD (Don't Forget to Add Weight Force to FBD given below) x F -T 2) Force applied by spring is F=kAx, Ax=Spring Deflection, the Spring is already deflected for 10 mm and if you stretch it 150 mm more, the total stretch will be 160 mm that is your Ax in this problem, also note: 3.5 kN/m-3500 N/m