Analyzing the Tether Ball Problem: Forces and Motion

[Charanjit]

1. Homework Statement

A tether ball leans against the post to which it is attached. The string is attached to the ball such that a line along the string passes through the center of the ball. The string to which the ball is attached has length 1.50 m and the ball's radius is 0.108 m and has a mass of 0.275 kg . Neglect any friction between the ball and the pole.




2. Homework Equations

F=ma
A=v^2/r
F=mv^2/r



3. The Attempt at a Solution

Have a free body diagram, but have no clue where to start.

 

[Bill Foster]

What is the question?

 

[Charanjit]

Woops, sorry.

First question: What is the tension in the rope?
Second: What is the force the pole exerts on the ball?

 

[Bill Foster]

Start by labeling the forces on the free body diagram.

 

[Charanjit]

Ok I got the first question figured out, need help with the second one.

 

[Charanjit]

I had help and worked out the second part which asks what is the force that the pole exterts on the ball, and I got 0.194. But my online system doesn't accept, maybe its wrong. Can someone confirm?

 

[Bill Foster]

I had help and worked out the second part which asks what is the force that the pole exterts on the ball, and I got 0.194. But my online system doesn't accept, maybe its wrong. Can someone confirm?

Work it out here.

 

[Charanjit]

Nevermind, had my instructor explain it.