# Ball Speed and Acceleration

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Here's the question:

A 2.0 kg ball swings in a vertical circle on the end of an 80-cm-long string. The tension in the string is 20 N when its angle from the highest point on the circle is theta = 30 degrees.

(a) What is the ball's speed when theta equals 30 degrees? (in m/s)

(b) What is the magnitude of the ball's acceleration when theta equals 30 degrees? (in m/s^2)

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#### Solution Summary

This solution provides a brief calculation for speed and acceleration using Newton's law.

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