College Physics 10th Edition by Raymond Serway,Chris Vuille

Exercise 59

A truck is carrying a steel beam of length 15.0 m on a freeway. An accident causes the beam to be dumped offthe truck and slide horizontally along the ground at a speed of 25.0 m/s. The velocity of the center of mass of the beam is northward while the length of the beam maintains an east west orientation. The vertical component of the Earth's magnetic field at this location has a magnitude of 35.0 T. What is the magnitude of the induced emf between the ends of the beam