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2 years ago

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A tire rotates

1 answer:

Oksana_A [137]2 years ago

7 0

$450\ rot/min=450\ rot/60s=\frac{450}{60}\ rot/s=7.5\ rot/min\\\\7.5\cdot360^o=2700^o\leftarrow answer$

$7.5\to7\ and\ half\ circle\to 180^o$

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