An Object of Mass 1 Kg Is Whirled Round in a Horizontal

question 3

Multiple Choice

An object of mass 1 kg is whirled round in a horizontal circle of radius 0.5 m on the end of a rope. When it rotates at 4 rev/s, the tension in the rope is:

• A) 8 N
• B) 158 N
• C) 316 N
• D) 632 N

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