A rabbit is running with a constant velocity from an initial position of 18.0 m to a final position of 22.2 meters in 42 seconds. At what time will the rabbit be at 38 meters?

Inner peace.. jk it's  a stable electron configuration

Answer(a)   the matererials that are in contact, the two materials and the nature of their surfaces/// (b)/// the force pushing the two surfaces together, pushing the surfaces together causes the more of the asperities to come together and increases the surface area in contact with each other