ch04-p105 - 105. The radius of Earth may be found in...

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105. The radius of Earth may be found in Appendix C. (a) The speed of an object at Earth’s equator is v = 2 π R / T , where R is the radius of Earth (6.37 × 10 6 m) and T is the length of a day (8.64 × 10 4 s): v = 2 (6.37 × 10 6 m)/(8.64 × 10 4 s) = 463 m/s. The magnitude of the acceleration is given by a v R == ×
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