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solve the formula for r. suppose a merry-go-round is spinning once every 3 seconds. is the point on the outside edge has a speed of 12.56 ft per second, what is the radius of the merry-go-round? (use 3.14 for π)​

Respuesta :

sqdancefan

Answer:

  6 feet

Step-by-step explanation:

The circumference is given by ...

  C = 2πr

Since we travel that distance in 3 seconds, our speed is ...

  2πr/3 = 12.56 . . . . . . feet per second

  6.28/3r = 12.56 . . . . using 3.14 for π

  r = 12.56(3/6.28) = 6

The radius of the merry-go-round is 6 feet.

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