A truck travels due east for a distance of 1.7 km, turns around and goes due west for 6.0 km, and finally turns around again and travels 3.4 km due east. (a) What is the total distance (in km) that the truck travels? (Enter a number.) km (b) What are the magnitude (in km) and direction of the truck's displacement? (Enter a number.) magnitude km direction east west neither Soccer fields vary in size. A large soccer field is 105 meters long and 85 meters wide. What are its dimensions in feet? (Assume that 1 meter equals 3.281 feet. For each answer, enter a number.) length width ft ft What are its dimensions in inches? (For each answer, enter a number.) length width in in + OSCOLPHYS2016ACC 2.3.P.006. PRACTICE ANOTHER [-/2 Points] DETAILS Y NOTES ASK YOUR TEACHER A helicopter blade spins at exactly 90 revolutions per minute. Its tip is 7.00 m from the center of rotation. (For each answer, enter a number.) (a) Calculate the average speed (in m/s) of the blade tip in the helicopter's frame of reference. + m/s (b) What is its average velocity (in m/s) over one revolution? m/s