Please help - Gravity v/& Acceleration

  1. Hi everyone,

    I hope you can help me with this as I am having a problem sorting all this out.

    I have been told that Gravity and acceration are the same thing. It was explained to me by thinking about droping a ball in a lift (that was is space so no gravity) and the ball would act as if it was being pulled to the floor by gravity.

    OK, I sort of understand this.

    But I was also told that if a swing a stone on a string around y head, then the stone is affected by gravity towards the centre of the spining. ie. towards me. But I can't be producing gravity, so what is happening please.

    Thank you for any help you can give me.

  2. jcsd
  3. A.T.

    A.T. 6,456
    Science Advisor
    Gold Member

    Not really the same thing. Accelerated frames are equivalent to frames at rest in a gravitational field.
    You are producing "artificial" gravity. For someone living in the stone it would the same as being at rest on the surface of a planet.
  4. oooooo. I get it now.
    Thank you so much.
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