An electric car of mass 1000kg uses twenty five 12v batteries connected together to create a p.d. of 300V. The car accelerates from rest to a speed of 30ms^-1 in 12 seconds.

a) what is the final kinetic energy of the car?
b) what is the power of the car?
c) How much electrical current flows from the battery?
What assumptions have you made in calculating a) to c)?