A 10-kg rotating disk of radius 0.25 m has an angular momentum of 0.45 kg ∙ m2/s. What is the angular speed of the disk?
Answer to relevant QuestionsCompute the ratio of the magnitudes of the Earth’s orbital angular momentum and its rotational angular momentum. Are these momenta in the same direction? An ice skater has a moment of inertia of 100 kg ∙m2 when his arms are outstretched and a moment of inertia of 75 kg ∙ m2 when his arms are tucked in close to his chest. If he starts to spin at an angular speed of 2.0 rps ...A bowling ball with a diameter of 21.6 cm is rolling down a level alley surface at without slipping. Assume the ball is uniform and made of plastic with a density of 800 kg/m3. (a) What is the angular speed of the ball? ...A stationary ice skater with a mass of 80.0 kg and a moment of inertia (about her central vertical axis) of catches a baseball with her outstretched arm. The catch is made at a distance of 1.00 m from the central axis. The ...Ocean liners weigh thousands of tons. How are they made to float?
Post your question