What distance does a biker travel if he rides at a constant speed or 22 m/s for 45 seconds?

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

The capital letters and lowercase letters smoothly run together without lifting the pen