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Un article trouvé pour ce sujet.
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A dot on a child's car wheel |
2019-04-28 |
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julia pose la question :
A wheel of a child’s car revolves at 10 rpm. A painted dot on the circumference of the wheel is 12 cm from the centre of rotation of the wheel. How far does the dot travel in 5 s, to one decimal place?
Penny Nom lui répond. |
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