A bar of mass `m` and length `l` moves on two frictionless parallel rails in the presence of a un

A bar of mass `m` and length `l` moves on two frictionless parallel rails in the presence of a uniform magnetic field directed into the plane of the paper. The bar is given and initial velocity `v_(i)` to the right and released. Find the velocity of bar, induced emf across the bar and the current in the circuit as a function of time