A rail gun uses electromagnetic forces to accelerate a projectile to very high velocities. The basic mechanism of acceleration is relatively simple and can be illustrated in the following example. A metal rod of mass 30.0 g and electrical resistance 0.300 N rests on parallel horizontal rails that have negligible electric resistance. The rails are a distance L = 6.00 cm apart. (Figure 1)The rails are also connected to a voltage source providing a voltage of V - 5.00 V. The rod is placed in a vertical magnetic field. The rod begins to slide when the field reaches the value B = 0.147 T . Assume that the rod has a slightly flattened bottom so that it slides instead of rolling. Use 9.80 m/s² for the magnitude of the acceleration due to Part A Find , the coefficient of static friction between the rod and the rails. Give your answer numerically. • View Available Hint(s) gravity. ? Hmu_s= Submit

A rail gun uses electromagnetic forces to accelerate a projectile to very high velocities. The basic mechanism of acceleration is relatively simple and can be illustrated in the following example. A metal rod of mass 30.0 g and electrical resistance 0.300 N rests on parallel horizontal rails that have negligible electric resistance. The rails are a distance L = 6.00 cm apart. (Figure 1)The rails are also connected to a voltage source providing a voltage of V - 5.00 V. The rod is placed in a vertical magnetic field. The rod begins to slide when the field reaches the value B = 0.147 T . Assume that the rod has a slightly flattened bottom so that it slides instead of rolling. Use 9.80 m/s² for the magnitude of the acceleration due to Part A Find , the coefficient of static friction between the rod and the rails. Give your answer numerically. • View Available Hint(s) gravity. ? Hmu_s= Submit