A 020-kg object attached to the end of a string swings in a
A 0.20-kg object attached to the end of a string swings in a vertical circle (radius = 80 cm). At the top of the circle the speed of the object is 4.5 m/s. What is the magnitude of the tension in the string at this position?
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a 020-kg object attached to the end of a string swings in a vertical circle radius 80 cm at the top of the circle the
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