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 Form 4 Physics Uniform Circular Motion Questions and Answers

Figure 11 shows a stone attached to the end of a string moving in a horizontal circle with a uniform speed of 2m/s. When the stone reaches point X on the circle, the string breaks.
Figure11432020326.png
i)Indicate on the diagram with an arrow, the direction of the motion of the stone when the string breaks.
ii).State the magnitude of the velocity after the string breaks. iii).Give a reason for your answers in i) and ii) above.
(KCSE 2011 Paper 1 question 16 a).)

 (3m 3s)
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