Objects that are at rest relative to Earth’s surface are in circular motion due to Earth’s rotation. 

(a) What is the radial acceleration of an object at the equator? 

(b) Is the object’s apparent weight greater or less than its weight? Explain. 

(c) By what percentage does the apparent weight differ from the weight at the equator? (d) Is there any place on Earth where a bathroom scale reading is equal to your true weight? Explain.