A car engine's crankshaft rotates at 3.00 × 10³ revolutions per minute (rpm). Calculate the angular velocity of the engine's crankshaft in radians per second (rad/s).

• A. 1.00 × 10² rad/s
• B. 1.57 × 10⁴ rad/s
• C. 1.88 × 10⁴ rad/s
• D. 3.14 × 10² rad/s

Answer: (D)