Question

down A hollow cylinder with inner radius R = 4.45 m rotates with constant angular velocity w around a vertical axis through its center. A small box of mass m = 4.37 kg is placed on the vertical inner surface of the cylinder and rotates with it. The coefficient of static friction between the box and the inner surface is p = 0.272, and the frictional force f between the box and the inner surface keeps the box from sliding down. 1) Which of the following is the correct Free Body Diagram for the box at the instant shown above? FBD 1 FBD2 FBD 3 N N centripetal mg mg mg FBD1 FBD2 FBD3 Submit 2) What is the minimum angular velocity wmin that the cylinder can have without the box sliding down the wall? wmin = 2.42 rad/s W min = 2.85 rad/s Wmin = 1.85 rad/s wmin = 2.13 rad/s wmin = 3.56 rad/s

Answer 1

f.B.Di N AL Fcentri petal is force . It is of all forces Es ma not effect like 199 Efy =0 fr= mg Mn= mg (N=80 mo wa umow2 = ma we = f we = g 12 x 445 9.8. o. 272 X 40u5 ler - 2.85 rad is