A toy car of mass `m` is having two similar rubber ribbons attached to it as shown in the figure. The force constant of each rubber ribbon is `k` and surface is frictionless. The car is displaced from mean position by `x cm` and released. At the mean position the ribbons are undeformed. Vibration period is

Options

A. `2pisqrt((m(2k))/(k^(2))`
B. `(1)/(2)pisqrt((m(2k))/(k^(2))`
C. `2pisqrt((m)/(k^(2))`
D. `2pisqrt((m)/(k+k))`

Answer

C