Solve the Problem

Multiple Choice

Solve the problem.
-A 25-kg mass is attached to a spring that hangs vertically and is stretched 3 m from the equilibrium position of the spring. Assume a linear spring with F(x) = kx. How much work is required to compress the spring and lift the mass 1.5 m? Round to four decimal places when appropriate.

A) 275.625 J
B) 398.125 J
C) 30.625 J
D) 643.125 J