A frictiоnless cаrt оf mаss m is аttached tо a spring with spring constant k. When the cart is displaced from its rest position and released, it oscillates with a period T. The graph of the position of this cart as a function of time is labeled Experiment A. Suppose that in a second experiment (Experiment B), the mass used in Experiment A was doubled and the spring was replaced with a spring with spring constant 2k. The period in Experiment B would be