A 25.0-kg object is attached to one end of a light, rigid cord. The object rotates in a horizontal circle of radius 5.0 m at a constant angular speed. The object completes one rotation in 8.5 seconds. Find the tension in the cord.

• A. 13.7 N
• B. 29.4 N
• C. 68.3 N
• D. 92.4 N

Answer: (C)