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A solid disk with radius R and mass M rolls along a surface without slipping at constant velocity v. What is the angular momentum L of the disk about its own axis as it rolls? A dumbbell consists of two masses m connected by a rigid rod of negligible mass and length d. A physics student takes the dumbbell and rotates it about is center of mass with an angular velocity 𝜔, giving it an angular momentum 𝐿_1. The student then extends the same dumbbell to a new length of 2d, and rotates them with the same angular velocity 𝜔. What is the angular momentum 𝐿_2 of this second dumbbell? In the figure shown below, a bullet of mass m moving with speed v strikes a uniform rod AB of mass M and length L at the end B and gets embedded into it. If initially the rod is vertical and hinged at end A, then the angular speed |𝜔_𝑓 | of the system immediately after the collision will be An object whose moment of inertia is 4 kg∙m2 is rotating with angular velocity +0.25 rad/s It then experiences a varying torque shown in the figure below. What is the object’s angular velocity 𝜔(𝑡) at t = 3 s?