Back to 10.7 Newton’s Second Law for Rotation

10.7 Exercise 11

Avg difficulty 2.5

Suppose when Earth was created, it was not rotating. However, after the application of a uniform torque for 6 days according to the current length of a day, it was rotating at 1 rev/day. (a) What was the angular acceleration during the 6 days? (b) What torque was applied to Earth during this period? (c) What force tangent to Earth at its equator would produce this torque?

OpenStax University Physics Volume 1, 10.7 Newton’s Second Law for Rotation, exercise 11

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