As a material gains more mass in the same amount of volume(a water bottle is filled up with water, for example), that material's density will...

b.final

what is the average time it took the car to travel 0.25 meters?

⇒ 2.23 seconds

what is the average time it took the car to travel 0.50 meters?

⇒ 3.13 seconds

answer; 4 electrons;