The product structure. The time-phased product structure. Level V w 0 S T T1) U12) 1 S LY U 2 V2) W(1) X(1) Y(2) Z(3) N 1 6 2 3 4 5 Time in weeks Item Item On-Hand Inventory 25 S T U On-Hand Inventory 20 20 40 20 w Y z 25 40 420 The demand for subassembly S is 110 units in week 7. Each unit of S requires 1 unit of T and 2 units of U. Each unit of T requires 2 units of V, 1 unit of W, and 1 unit of X. Finally, each unit of U requires 2 units of Y and 3 units of Z. One firm manufactures all items. It takes 2 weeks to make S, 1 week to make T, 2 weeks to make U, 2 weeks to make V, 3 weeks to make W, 1 week to make X, 2 weeks to make Y, and 1 week to make Z. Click the icon to view the product structure and the time-phased product structure. Click the icon to view the on-hand inventory. Suppose that in addition to 110 units of S, there is also a demand for 20 units of U, which is a component of S. The 20 units of U are needed for maintenance purposes. These units are needed in week 6. Additionally, a new order has been received for 90 units of S due in week 8. Modify the net material requirements plan to reflect these changes. Construct a new net material requirements plan (enter your responses as whole numbers). Item Week 4 5 Lead Time (weeks) 1 2 3 6 7 8 S Gross req On hand 2 Net req Order receipt Order release