A child is riding a merry-go-round, which has an instantaneous angular speed of 1.25 rad/s and an angular acceleration of 0.745 rad/s2

The child is standing 4.65 m from the center of the merry-go-round. (a) What is the magnitude of the acceleration of the child?
(b) What angle does the acceleration of the child make with the tangential direction?


(a) 8.05 m/s2
(b) 64.5°

Physics & Space Science

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The Sun's average surface (photosphere) temperature is about

A) 1,000,000 K. B) 5,800 K. C) 1,000 K. D) 37,000 K.

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On each given day and location, tides rise and fall at

A) about the same time. B) exactly the same time. C) different times. D) ever increasing rates daily.

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