Travelling in magnetic fields
A particle travelling at a velocity of 100 m/s has a mass of 0.1 Kg and a charge of 2 C. The particle enters into a room of constant magnetic field of 5 Tesla through Door A. It then travels in a perfect semi-circular path (due to the influence of Magnetic Field) and exits from Door B. What is the distance, in meter, between Door A and Door B?
Assume that no Air friction acts on this particle inside the room. Note: both the doors are on the same wall (just a clarification)