Part 1: A boy runs 16.2 blocks North, 6 blocks Northeast, and 10.5 blocks West. Determine the length of the displacement vector that goes from the starting point to his final position. Part 2: Determine the direction of the displacement vector. Use counterclockwise as the positive angular direction, between the limits of −180◦ and +180◦ measured from East. Answer in units of ◦