1) An object of mass (m=2.0 kg) is given an acceleration given by a=3.0 i +4.0j. The magnitude of the applied force in (N) is:

How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential to lower potential? a.the kinetic energy increases.b.the kinetic energy decreases.c.the kinetic energy remains the same.d.the kinetic energy is always zero.