Answer
$2700^{\circ}$ in 1 second
Work Step by Step
1. To find the number of rotations per second, just divide 450 by 60
$\frac{450}{60}=7.5$
2. To find the amount of degrees of 7.5 rotations just multiply it by 360 degrees.
$7.5\times360^{\circ}=2700^{\circ}$