6. As shown in the figure, a uniform thin rod can rotate througha horizontal smooth fixed axis O perpendicular to the up

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6 As Shown In The Figure A Uniform Thin Rod Can Rotate Througha Horizontal Smooth Fixed Axis O Perpendicular To The Up 1 (35.86 KiB) Viewed 16 times

6. As shown in the figure, a uniform thin rod can rotate througha horizontal smooth fixed axis O perpendicular to the upper end of the rod, andits initial state is static suspension. Now a small ball strikes the rodhorizontally from the left. Suppose that the collision between the ball and therod is inelastic, then the system of the rod and the ball is affected duringthe collision T Multiple-Choice (10 Points) A. Only momentum is conserved. O B. Angular momentum is conserved only with respect to axis O. O C. Only mechanical energy is conserved. O D. Mechanical energy, momentum and angular momentum areconserved.