# I am learning on my own, any physic expert show me how to solve this problem?

During an earthquake, a skyscraper is designed to sway back and forth with simple harmonic motion with a period of 8 seconds. The amplitude at the top floor for a particular earthquake is 70 cm. With respect to the simple harmonic motion of top floor,

(1) Calculate the radius of the circle used to represent SHM.

(2) The speed of the object moving around the circle

(3) The angular velocity

(4) The maximum speed of the top floor

(5) The maximum acceleration of the top floor

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