Technical Drawing - Exam Papers - Higher - 1995 - Paper 1

Question 5

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Fig. 4 shows a circle which rolls along the arc PAB for one complete revolution. Also shown is the initial position of a point P on the circle.

During the rolling of the circle, the point P is unwound as an involute of the circle from P to C in a clockwise direction.

Draw the locus of P for the combined movement

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