Abicycle takes 8 seconds to accelerate at a constant rate from rest to a speed of 4 m/s. if the mass of the bicycle and rider together is 85 kg, what is the net force acting on the bicycle?

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.