A child's top is held in place upright on a frictionless surface. The axle has a radius of r = 4.21 mm. Two strings are wrapped around the axle, and the top is set spinning by applying T = 1.65 N of constant tension to each string. If it %3D takes 0.740 s for the string to unwind, how much angular momentum L does the top acquire? Assume that the strings do not slip as the tension is applied. L = kg-m2 Point P is located on the outer surface of the top, a distance h = 31.0 mm above the ground. The angle that the outer %3D surface of the top makes with the rotation axis of the top is 0 = 28.0°. If the final tangential speed v of point P is 1.05 m/s, what is the top's moment of inertia I?

A child's top is held in place upright on a frictionless surface. The axle has a radius of r = 4.21 mm. Two strings are wrapped around the axle, and the top is set spinning by applying T = 1.65 N of constant tension to each string. If it %3D takes 0.740 s for the string to unwind, how much angular momentum L does the top acquire? Assume that the strings do not slip as the tension is applied. L = kg-m2 Point P is located on the outer surface of the top, a distance h = 31.0 mm above the ground. The angle that the outer %3D surface of the top makes with the rotation axis of the top is 0 = 28.0°. If the final tangential speed v of point P is 1.05 m/s, what is the top's moment of inertia I?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 8CQ: A massless tether with a masses tied to both ends rotates about a fixed axis through the center. Can...

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