Consider a conducting rod of length 34 cm moving along a pair of rails, and a magnetic field pointing perpendicular to the plane of the rails. Required:
At what speed (in m/s) must the sliding rod move to produce an emf of 0.75V in a 1.75T field?

The speed is  

Explanation:

From the question we are told that

   The  length of the rod is  

    The  induced emf is

    The  magnetic field is

Generally the speed is mathematically represented as

=>    

=>  

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement

im sorry i dont know