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08-11-2019
Physics

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A ball on a string makes 25.0 revolutions in 9.37 s, in a circle radius 0.450 m. What is it’s velocity?

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08-11-2019

Answer:

7.54 m/s

Explanation:

C = 2πr

C = 2π (0.450 m)

C = 2.827 m

v = d / t

v = 25.0 (2.827 m) / (9.37 s)

v = 7.54 m/s

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