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Angular speed and length of day calculations

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53. Suppose Earth's radius increased uniformly by 0.001 percent without any change in mass. What would be the change in the length of the day?

33. A gob of clay, mass 100g, falls from rest a distance 75cm before striking and sticking to the edge of a wheel free to rotate about a horizontal axis through its center. The wheel can be approximated as a solid disk of mass 10kg and radius 50cm. What is the angular speed of the wheel with the gob of clay attached?

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Solution Summary

Two calculations are provided for the change of the length of day of the earth based on a change of radius as well as a calculation of angular speed for a rotating wheel.

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