Q 2

Two children,Ahmed and Jacques,ride on a merry-go-round.Ahmed is at a greater distance from the axis of rotation than Jacques.Which of the following are true statements? (There could be more than one correct choice. )
A)Jacques has a greater angular speed than Ahmed.
B)Jacques and Ahmed have the same angular speed.
C)Jacques has a smaller angular speed than Ahmed.
D)Ahmed has a greater tangential speed than Jacques.
E)Jacques and Ahmed have the same tangential speed.

Q 3

The figure shows scale drawings of four objects,each of the same mass and uniform thickness,with the mass distributed uniformly.Which one has the greatest moment of inertia when rotated about an axis perpendicular to the plane of the drawing at point P?
A)A
B)B
C)C
D)D
E)The moment of inertia is the same for all of these objects.

Q 4

The rotating systems shown in the figure differ only in that the two identical movable masses are positioned a distance r from the axis of rotation (left),or a distance r/2 from the axis of rotation (right).If you release the hanging blocks simultaneously from rest,
A)the block at the left lands first.
B)the block at the right lands first.
C)both blocks land at the same time.