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AP Physics 1
6.4 Conservation of Angular Momentum
6.3 Angular Momentum and Angular Impulse
IntermediateMCQConceptual16.5k
Top-down view of a horizontal surface. A uniform rod of length L is oriented vertically on the page, with a pivot at its top end. A small ball of mass m is moving horizontally to the right with velocity v, aligned to strike the center of the rod (midpoint L/2).
Top-down view of the ball and pivoted rod on a frictionless surface.
A small ball of mass \(m\) slides across a horizontal, frictionless surface with a velocity \(v\) toward a uniform rod of mass \(M\) and length \(L\). The rod is initially at rest and is free to rotate about a frictionless pivot at one of its ends. The ball strikes the rod at its midpoint and sticks to it. Which of the following correctly states whether the angular momentum of the ball-rod system about the pivot is conserved during the collision and provides a correct justification?

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