Meriam, Kraige & Bolton — Kinetics of Particles: Problem 3_77

3/77 The small 0.2-kg slider is known to move from position A to position B along the vertical-plane slot. Determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. The distance \(R = 0.8 \text{ m}\), the spring modulus \(k = 180 \text{ N/m}\), and the unstretched length of the spring is \(0.6 \text{ m}\).