Question

A tire rotates
450 times per min. Through how many degrees does a point on
the edge of the
tire move in 1 sec?

Answer 1

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



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