Roller Coaster 2: Figure 13-5n shows part of a roller coaster track. Its shape is a prolate cycloid (see 7) traced by a point P(x, y) on the flange of a wheel as the wheel rolls, without slipping, through an angle of t radians underneath the line y = 20. Point P(x, y), 12 feet from the center of the wheel, is at its top position, directly above the origin, when angle t = 0. The position vector (not shown) to point P(x, y) is the sum of four other vectors starting at the origin, . Find a vector equation for the track in terms of t. By plotting on your grapher, show that your equation is correct. Figure 13-5n

Ch. 9 Language What is language Language: spoken, written, or signed words and the ways we combine them to communicate meaning Do other species have language Animals can communicate with each other Bee dance Vervet monkeys Different calls for “snake” “eagle” “leopard” Chimps and other primates...