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25 February, 08:22

A girl sits on a tire swing and is pushed in a circular motion by her father. Her tangential speed is 2.8 m/s and the girl travels in a circle with a diameter of 4.0 m. What is the girl's centripetal acceleration?

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  1. 25 February, 08:33
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    The problem can be solved by using the centripetal acceleration formula. This formula is shown below:

    Ca = Vt^2 / r

    Ca = centripetal acceleration = ?

    Vt = tangential speed = 2.8 m/s

    r = radius = 2 m

    Substituting:

    Ca = 2.8^2 / 2

    Ca = 3.92 m/s^2
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