Tension problem for ball on string in circle radius - NEED HELP

  • Thread starter tatsalez
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  • #1
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Homework Statement



A person whirls a ball and string in a vertical circle of radius 1.50m. The ball travels at a constant speed of 6.50 m/s around the circular path; its mass is 55.0g. What is the tension in the string at (a) the bottom and (b) the top.

Homework Equations





The Attempt at a Solution



I was thinking a free body diagram but no idea how to start it. And what would it look like.

Can anyone give me a good start, or a detailed layout of how you worked the problem.

Thank you,
Matt
 

Answers and Replies

  • #2
LowlyPion
Homework Helper
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Homework Statement



A person whirls a ball and string in a vertical circle of radius 1.50m. The ball travels at a constant speed of 6.50 m/s around the circular path; its mass is 55.0g. What is the tension in the string at (a) the bottom and (b) the top.

Homework Equations



The Attempt at a Solution



I was thinking a free body diagram but no idea how to start it. And what would it look like.

Can anyone give me a good start, or a detailed layout of how you worked the problem.

Thank you,
Matt
If it is describing circular motion vertically, what forces are acting on it from gravity and from the string?
 
  • #3
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It would be Ftension pointing upwards, and Mg ( mass x gravity ) pointing downwards. Is that correct?
 
  • #4
LowlyPion
Homework Helper
3,090
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It would be Ftension pointing upwards, and Mg ( mass x gravity ) pointing downwards. Is that correct?
What is the source of the tension as a result of its circular motion?
 

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