A positively charged particle of mass 6.2*10-8 kg is traveling north with a speed of 61 m/sand enters a 0.33 T uniform magneticfield. The particle moves through one-quarter of a circle in a time of 3.0*10-3 s, at which time it leaves the field heading east. All during the motion the particle moves perpendicular to the magnetic field.
a) What is the magnitude of the magnetic force acting on the particle?
b) Determine the magnitude of the charge of the particle.
c) What is the direction of the uniform magnetic field?