On the Round Up at the amusement park, people stand in a cylindical "room" of radius 6.18 m and the room rotates until it reaches a rotational frequency of 0.89 revolutions per second. At this point, the floor drops out. What is the minimum coefficient of static friction needed so that people will not slide down the wall?

Question

On the Round Up at the amusement park, people stand in a cylindical "room" of radius 6.18 m and the room rotates until it reaches a rotational frequency of 0.89 revolutions per second. At this point, the floor drops out. What is the minimum coefficient of static friction needed so that people will not slide down the wall?
what is the equation i should use to find the coefficient

Chanz · Answer

Normal: Fn=mr(omega^2) You'll need to change rev/sec into rad/sec Friction: Ff= mg Coefficient of friction mu = Ff/Fn