(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

In the diagram below, the horizontal force, F, holds the ball steady. Given F = 7.0 N, and [tex]\theta[/tex] = 18 deg, calculate the mass of the ball.

I can't get the link to the picture to work, but it looks like a basic free body diagram with a ball. The ball is m, with an arrow, F, protruding from the right of this ball. At about 130-140 deg from the positive x-axis an arrow for, T, points towards a direction that you could imagine as northwest. The string is also hung from this angle, so a thin line that indicates the string and the arrow, T fall right on each other. If you imagine upper section of the string, angle theta which is 18 deg is indicated which is drawn to the left of the string.

What is the tension in the string.

2. Relevant equations

[tex]\sum F[/tex] = ma

I think you do components, not 100% sure.

3. The attempt at a solution

I drew a free body diagram with a coordinate system where T lies directly along the -x-axis. Using Fx = 7.0cos18deg, and Fy = 7.0sin18deg, they were 6.66 N and 2.16 N respectively. But from here, I'm not really sure what to do. In my diagram I also added W = mg.

I also didn't know how to approach the tension problem. Would you need to subtract components?

Thank you

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# Homework Help: Suspended Ball:Force Problem

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