1. Problem In the figure, we must apply a force of magnitude 63 N to hold the block stationary at x = -2.0 cm. From that position we then slowly move the block so that our force does +4.1 J of work on the spring-block system; the block is then again stationary. What is the block's position (x)? (There are two answers.) Here's the figure: http://www.webassign.net/hrw/7-11a.gif ? cm (smaller value) ? cm (larger value) 2. Attempt at a solution +4.1 J = (1/2)k * (xf2 - xi2) (+63 N)î = -k(-2.0 cm)î k = 3.15 x 103 N/M xi= -2.0 cm I got some weird decimal answer which was apparently wrong. I also don't understand what the smaller and larger value is.