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A 0.25 kg stone tied to a 0.5 m string whirls at a speed of 4 m/s. What is the centripetal acceleration acting on the stone?

  • physics -

    V^2/R is the acceleration. You don't need to know the mass unless you want the centripetal FORCE.

    V = 4 m/s and 0.5 m is the radius, R.

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