A block of mass \(m\) on a frictionless horizontal surface is attached to an ideal spring of spring constant \(k\). The block is pulled from equilibrium until an applied horizontal force of magnitude \(F_0\) holds it at rest, and it is then released from rest at time \(t = 0\), producing the solid velocity-time curve shown in the graphs. In a second experiment, a block of mass \(2m\) is attached to a spring of spring constant \(2k\), pulled from equilibrium until held at rest by the same force of magnitude \(F_0\), and released from rest at \(t = 0\). Which of the following graphs best represents the velocity of the second block as a function of time (dashed curve) compared to the first block (solid curve)?