A stationary bicycle wheel of radius 0.9 m is mounted in the vertical plane (Figure 11.85). The axle is held up by supports that are not shown, and the wheel is free to rotate on the nearly...

A stationary bicycle wheel of radius 0.9 m is mounted in the vertical plane (Figure 11.85). The axle is held up by supports that are not shown, and the wheel is free to rotate on the nearly frictionless axle. The wheel has mass 4.8 kg, all concentrated in the rim (the spokes have negligible mass). A lump of clay with mass 0.5 kg falls and sticks to the outer edge of the wheel at the location shown. Just before the impact the clay has speed 5 m/s, and the wheel is rotating clockwise with angular speed 0.33 radians/s.

(A) The downward linear momentum decreases because the axle exerts an upward force.

(B) Some of the linear momentum is changed into angular momentum.

(C) Some of the linear momentum is changed into energy.

(D) There is no change because linear momentum is always conserved.