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

[tatsalez]

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

 

[LowlyPion]

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?

 

[tatsalez]

It would be Ftension pointing upwards, and Mg ( mass x gravity ) pointing downwards. Is that correct?

 

[LowlyPion]

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?