$\"\"$

Find the rotation in revolutions per minute.

The angular speed is $\"\"$ .

Time $\"\"$ .

Angular speed of the object is $\"\"$ .

Substitute $\"\"$ and $\"\"$ in $\"\"$ .

$\"\"$

Angle of each rotation is $\"\"$ .

Number of rotation in revolutions per minute is $\"\"$ revolutions per minute.

$\"\"$

Number of rotation in revolutions per minute is $\"\"$ revolutions per minute.