A mass m is attached to a string and is whirled in a vertical circle. At the top of the circle, the tension in the string is T. What is the expression for the tension at the bottom of the circle?
Practice Questions
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Q1
A mass m is attached to a string and is whirled in a vertical circle. At the top of the circle, the tension in the string is T. What is the expression for the tension at the bottom of the circle?
T + mg
T - mg
T
T + 2mg
At the bottom, T + mg = mv²/r; T = mv²/r - mg.
Questions & Step-by-step Solutions
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Q
Q: A mass m is attached to a string and is whirled in a vertical circle. At the top of the circle, the tension in the string is T. What is the expression for the tension at the bottom of the circle?
Solution: At the bottom, T + mg = mv²/r; T = mv²/r - mg.
