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physics

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if a stone at the end of a string is whirled in a circle, the inward pull on the stone

A) is known as the centrifugal force
B) is inversely proportional to the speed of the object
C) is inversely proportional to the square of the speed
D) is proportional to the speed
E) is proportional to the square of the speed


plzz help me soon

  • physics -

    A) is known as the centrifugal force
    E) is proportional to the square of the speed

  • physics -

    is propotional to the square of speed
    as we know that
    fc=mv^2/r

  • physics -

    proportional to the speed

  • physics -

    A) is known as the centrifugal force

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