1. The v-t graph for the motion of a car as it moves along a straight road is shown. Draw the s-t and a-t graphs. Also determine the average speed and the distance traveled for the 15-s time interval. When t = 0, s = 0.
2. Starting from rest at s = 0, a boat travels in a straight line with the acceleration shown by the a-s graph. Determine the boat's speed when s = 50 ft, 100 ft, and 150 ft.