H2P-79
Gravity near Earth’s surface
H2 Physics · JC 1 · Medium · Gravity near Earth’s surface
An object weighs 80.0 N on a spring balance at the pole of a rotating planet. The planet has radius and rotates once every 20.0 h. What is the reading of the balance at the equator?
- 79.7 N
- 80.0 N
- 79.0 N
- 80.3 N
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