Suppose when Earth was created, it was not rotating. However, after the application of a uniform torque for 6 days, it was rotating at 1 rev/day. (Enter the magnitudes.) (a) What was the angular acceleration during the 6 days (in rad/s2)? rad/s2 (b) What torque (in N · m) was applied to Earth during this period? (Assume Earth can be modeled as a solid sphere.) N · m (c) What force (in N) tangent to Earth at its equator would produce this torque? N

Given Initial angular velocity of the earth is 0 and the final angular velocity of the earth is ω =1…

Answered: Suppose when Earth was created, it was…

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 91P: Suppose when Earth was created, it was not rotating. However, after the application of a uniform...

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Suppose when Earth was created, it was not rotating. However, after the application of a uniform torque for 6 days, it was rotating at 1 rev/day. (Enter the magnitudes.)

(a) What was the angular acceleration during the 6 days (in rad/s²)?

rad/s²

(b) What torque (in N · m) was applied to Earth during this period? (Assume Earth can be modeled as a solid sphere.)

N · m

Definition Definition Rate of change of angular velocity. Angular acceleration indicates how fast the angular velocity changes over time. It is a vector quantity and has both magnitude and direction. Magnitude is represented by the length of the vector and direction is represented by the right-hand thumb rule. An angular acceleration vector will be always perpendicular to the plane of rotation. Angular acceleration is generally denoted by the Greek letter α and its SI unit is rad/s 2 .

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