A car wheel has a diameter of 48 cm. How many revolutions ( one circular movement around an axis) does the wheel make on a journey of 12 km? Give your answer to 3 significant figures.
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Answered by
2
Answer:
- diameter =48
- radius 24
Answered by
5
Answer:
radius=24cm
circumference =2 *22/7* 24
revolutions = 1200000*7/(2*22*24)
=25000*7/22
=7955 revolutions
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