A car of mass, 1200 kg is pulled with constant force of 3000N in 20s. Work out A) The acceleration resulted:

B) Distance travelled by the car, in the given time?

C) Work done by the engine of the car

D) The kinetic energy of the Car​

Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.