One End of a 1

question 31

Multiple Choice

One end of a 1.0-m string is fixed; the other end is attached to a 2.0-kg stone.The stone swings in a vertical circle, passing the top point at 4.0 m/s.The tension force of the string at this point is about:

• A)0 N
• B)12 N
• C)20 N
• D)32 N
• E)52 N