Between two superconducting tires, a piston moves at a constant speed v
0
towards the bridge of mass m, forming a superconducting circuit. Find the
maximum speed of the jumper if at the initial moment it was at rest, the
current in the circuit was equal to I , and the distance between the piston
0
and the jumper was equal to x. Inductance per unit length of the L busbars.
Ignore the friction.