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An object moving in two indentical semi-circular track from P to Q and then to R as shown below.
Each semi-circular track has a circumference of 11 m and a diameter of 7 m.
a) What is the total distance travelled by the object from P to R?
b) What is the displacement of the ball from P to R?
The diagram below shows a ball rolling from point A. After hitting the wall, it bounces back and moves in the opposite direction. It stops at point B.
a) What is the total distance travelled by the ball?
b) What is the displacement of the ball?
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