Answer :
Final answer:
An electric motor spinning at 3,000 RPM rotates 18,000 degrees per second, which means the correct answer is b) 18,000 degrees/second.
Explanation:
An electric motor that makes 3,000 revolutions per minute (RPM) converts to 50 revolutions per second, since one minute is equal to 60 seconds. Each revolution corresponds to 360 degrees because a circle has 360 degrees. Hence, the motor's rotation in degrees per second is calculated by multiplying the number of revolutions per second by the number of degrees per revolution:
50 rev/s × 360 degrees/rev = 18,000 degrees per second.
Therefore, the correct answer is b) 18,000 degrees/second.
