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Question 1

2.5 pts

The mass of the Earth is estimated to be 5.97 x 1024 kg. Assume the Earth is orbiting the sun in a perfect

circle (it is not actually), and the radius of the circle is 1.5 x 10¹¹ m. How much is the Earth's centripetal

acceleration? (Hint: If the Earth takes 365.25 days to complete a circle around the sun, what is its orbiting

speed?)

O 1.29m/s²

O 0.0473m/s²

0.00594m/s²

O 0.000712m/s²

Fig: 1