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(Solved): Please explain why it is 3  You are spinning a rock attached to a string on the surface of a t ...



You are spinning a rock attached to a string on the surface of a table, horizontally. Which of these changes, by itself, woulPlease explain why it is 3 

You are spinning a rock attached to a string on the surface of a table, horizontally. Which of these changes, by itself, would increase the force the string exerts on the rock by the most? I - Doubling the length of the string. II - Doubling the speed at which the rock moves. III - Halving the length of the string. IV - Halving the speed at which the rock moves. I I and II would have the same effect as one another. IV III


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To rotate the object by string we require centri
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