part 1)Two cars travel westward along a straighthighway, one at a constant velocity of87 km/h, and the other at a constant velocityof 107 km/h.Assuming that both cars start at the samepoint, how much sooner does the faster cararrive at a destination 21 km away?Answer in units of hpart 2)How far must the cars travel for the faster carto arrive 19 min before the slower car?answer in km