Question

A rod of mass m is released from rest in the vertical plane and slides along the rails. Find the terminal velocity of the rod if an B - field exists in the region as shown.

• A. $\frac{mgR}{Bl}$
• B. $\frac{2mgR}{Bl}$
• C. $\frac{mgR}{B^2{l}^2}$
• D. $\frac{2mgR}{B^2{l}^2}$

Answer 1

The correct option is C $\frac{mgR}{B^2{l}^2}$