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3 years ago

9

A merry-go-round rotates with a centripetal acceleration of 18 m/s^2. If the outer horses are 9 m from the center of the ride. W

hat is their velocity?
A. 12.7 m/s
B. 14.6 m/s
C. 16.3 m/s
D. 10.4 m/s

1 answer:

Charra [1.4K]3 years ago

8 0

Answer:

A

Explanation:

<em>a_c</em><em> </em><em>=</em><em> </em><em>v</em><em>^</em><em>2</em><em>/</em><em>r</em>

<em>v</em><em> </em><em>=</em><em> </em><em>sqrt</em><em>*</em><em>a_c</em><em> </em><em>×</em><em> </em><em>r</em><em>*</em>

<em>v</em><em> </em><em>=</em><em> </em><em>sqrt</em><em> </em><em>*</em><em> </em><em>1</em><em>8</em><em> </em><em>×</em><em> </em><em>9</em><em>*</em><em> </em>

<em>v</em><em> </em><em>=</em><em> </em><em>9</em><em>×</em><em>sqrt</em><em> </em><em>*</em><em>2</em><em>*</em>

<em>v</em><em> </em><em>=</em><em> </em><em>1</em><em>2</em><em>.</em><em> </em><em>7</em><em> </em><em>m</em><em>/</em><em>s</em>

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