An amusement park ride consists of a large vertical cylinder that spins about its axis fast enough that any person inside is held up against the wall when the floor drops away. The coefficient of static friction between person and wall is 0.40, and the radius of the cylinder R is 7.6m. What is the maximum period of revolution necessary to keep the person from falling in this situation?State your answer in seconds to the nearest 0.01. Use g=9.8m/s².