A car drives 5.0 km north, then east, then northeast, all at a constant velocity. If the car had to perform of work during this trip, what was the magnitude of the average frictional force on the car

The answer is b hope this

The answer is  a.first and third quarters 

What the heck r u talkin bout? ?

In atoms, the electron carries a negative elementary or unit charge; the proton carries a positive charge. the two types of charge are equal and opposite. in an atom of matter, an electrical charge occurs whenever the number of protons in the nucleus differs from the number of electrons surrounding that nucleus.