In a Carnival Ride,passengers Stand with Their Backs Against the Wall

question 62

Multiple Choice

In a carnival ride,passengers stand with their backs against the wall of a cylinder.The cylinder is set into rotation and the floor is lowered away from the passengers,but they remain stuck against the wall of the cylinder.For a cylinder with a 2.0-m radius,what is the minimum speed that the passengers can have so they do not fall if the coefficient of static friction between the passengers and the wall is 0.25?

• A)8.9 m/s
• B)2.3 m/s
• C)3.0 m/s
• D)4.9 m/s
• E)It depends on the mass of the passengers.