When a proton is released from rest in a room it starts with an initial acceleration `a_0` towards west when it is projected towards north with a speed `v_0` it moves with an initial acceleration `3 a_0` towards west the electric and magnetic fields in the room are

Options

A. `(ma_0)/e` east,`(3ma_0)/(ev_0)` down
B. `(ma_0)/e` west, `(2ma_0)/(ev_0)` up
C. `(ma_0)/e` west,`(2ma_0)/(ev_0)` down
D. `(ma_0)/e` east, `(3ma_0)/(ev_0)` up

Answer

C