A Spring,with K = 2500N/m,is Fixed Vertically to the Floor

question 53

Multiple Choice

A spring,with k = 2500N/m,is fixed vertically to the floor.A 10.0-kg box is then pressed down such that the spring is compressed 0.5 m beyond its equilibrium length.The box is then released and the box travels vertically upward reaching a maximum height of 2.24 m above its release point.What is the work done by the resistive forces (drag/air resistance) ?

• A)0 J
• B)-171 J
• C)-93 J
• D)-49 J
• E)-60 J