Exam 12: Rotation of a Rigid Body

A flat plate is placed within the plane of the paper. The plate is rotating counterclockwise around an axis that is perpendicular to the plate. The direction of its angular momentum is

A wheel with an initial $\omega = 0$ rotates at constant $\alpha ( \neq 0 )$ . A while later, the acceleration of a point on the rim must include all of the following except

The relation between the angular velocity $\omega$ and the period T of a rotating object is

A wheel undergoes rotational motion according to the equation $\phi ( \mathrm { rad } ) = c t + d t ^ { 3 }$ , where $\surd$ is in radians, c = 1.0 rad/s, and d = -0.50 rad/s³. At t = 2.0 s the net acceleration of an object 10.0 cm from the center of the wheel is

An object rotates with a constant angular acceleration of 10 rad/s², an initial angular speed of 10 rad/s, and a final angular speed of 30 rad/s. The angle turned through is

The dimensions of the radian are

A thin rod of length L has a mass/length ratio proportional to x-the distance measured from end A. The moment of inertia of the rod about an axis passing through A, perpendicular to the rod, is

A cylinder starting from rest is accelerated at 5.5 rad/s². The number of revolutions the cylinder turns through in 4.0 s is

For an object undergoing constant angular acceleration, all of the following change with time except

A wheel undergoes rotational motion according to the equation $\phi ( \mathrm { rad } ) = c t + d t ^ { 3 }$ , where $\surd$ is in radians, c = 1.0 rad/s, and d = -0.50 rad/s³. The wheel's angular velocity at 2.0 s is