A rectangular coil with dimensions $L_x$ and $W_y$ , mass $m$, $n$ turns , and resistance $R$ is moving at an initial velocity of $v_i$ when a non-uniform magnetic field pointing directly up (perpendicular to the motion of the coil) is turned on. The magnetic field varies along the x-axis and is described by $B(t) = b_1x+b_2$.
- What is the induced current the moment the field is turned on?
- What is the initial deceleration of the coil?
Edit: 1. can be solved as follows: $I = (NLWb_1v_i)/R$
What's the best way to approach 2.?