1. A 50 g horizontal metal bar, 12 cm long, is free to slide up and down between two tall, vertical metal rods. A 0.060 T magnetic field is directed perpendicular to the plane of the rods. The bar is raised to near the top of the rods, and a 1.0 Ohm resistor is connected across the two rods at the top. Then the bar is dropped. What is the terminal speed at which the bar falls? Ignore air resistance. 2. I= ε/R= (vlB)/R I is current, ε is motional emf, R is resistance, v is velocity, l is length, B is magnetic field. 3. I don't even know where to start. I know that R= 1.0, l= .12 m, B= 0.060 T. What do I do with the 50 g?