Question17 (20 points) (Optical) The conducting bar illustrated moves on two frictionless, parallel rails in the presence of a uniform magnetic field directed into the page. The bar has mass m, and its length is 1. The bar is given an initial velocity , to the right and is released at t=0. Using Newton's laws, find the velocity of the bars as a function of time.. ww x х x x x *R* x x x x x x x x Bin x x x x x x x x x B to x x. xxxx X x x PHYS206.001 Biwoolly Exam: Dr Vuohong Lan Page 7 of 7