1.A train travels at a constant speed of 60 mi/h, crosses over a road as shown. If the automobile A is traveling at 45 mi/h along the road, determine the magnitude and direction of the velocit of the train relative to the automobile. !."ar A is traveling with a constant speed of #0 $m/h due north, while "ar % is traveling with a constant speed of 100 $m/h due east. &etermine the velocit of car % relative to car A. '.(he boat A and % travel with constant speeds of )a * 15 m/s and )b * 10 m/s when the leave the pier at + at the same time. &etermine the velocit of % relative to A, and the distance between them when t * 4 s.