If the velocity is at 0 and the accelerationis at 0 what is the motion

Acharge of 8.4x10^-4 c moves at an angle of 35 degrees to a magnetic field that has a field strength of 6.7x10^-3 t. if the magnetic force is 3.5 x10 ^-2 n, how fast is the charge moving?

What is the magnitude of the resultant vector round your answer to the nearest tenth

Asystematic approach to problem solving is called a (an)