In the gure below, the two boxes are initially moving with a speed v. (13(2) y (a) Ignore friction and determine an expression for the distance d the boxes travel before coming to rest Choose the floor as the position for zero gravitational potential energy (Use the following as necessary: m1, m2, v, and g for the acceleration due to gravity.) d= (b) Is the work done on box 2 by the rope positive, negative, or zero? 0 positive 0 negative 0 zero (c) Determine an expression for the work done on box 1 by the rope. (Use the following as necessary: m1, m2, v, and g for the acceleration due to gravity.) WTl =