Answer: B) 0 mph
Explanation:
Velocity is a vector quantity. It can be measured as rate of change of displacement.

Displacement is the straight path length between final and initial position of the body in motion.
It is given that the car goes from point A to point B and the returns to Point A. Hence, the net displacement of the car is 0 as the car comes back to its initial position.
Therefore, the velocity of the car is 0 mph.
Option B is correct.
If the magnitude of the resultant of two vectors doesn't equal the sum
of their individual magnitudes, then they can have ANY directions, EXCEPT
only that they can't both be in the SAME direction.
Answer:
Water can spread germs through bacteria.
Explanation:
Bacteria can live in water and can spread to new locations when water is moved.
2,200 Newtons.
F = ma
v f = v i + at
0mls = 20mls + a(.5s)
-20mls/.5s = -40mls squared
-40mls squared (55kg) = 2,200 Newtons.
Hope this helps!