Recent content by Callen9

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    Kinetic and Potential Energy Problem Solving

    So I'm guessing for #2, It would be something along the lines of T1+T2=?... most likely the value of centripetal force. Same for #3 I guess too.
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    Kinetic and Potential Energy Problem Solving

    Homework Statement Doing some homework with kinetic energy and potential energy. I came across 3 questions that I am struggling with. Basically we have a mass attached to the end of a string. The string is hanging straight down to start off these questions. The following questions assume that...
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    How Do You Calculate the Third Force in a Three-Force System?

    Homework Statement A 20-kg object is subjected to three forces which produce an acceleration a = -8 m.s-2 i + 6.0 m.s-2 j on the object. Two of the forces are: F1 = 3.0 N i + 16.0 N j F2 = -12.0 N i+ 8.0 N j Find the third force. Homework Equations The Attempt at a...
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    What Is the Minimum Speed Needed for a Whirling Ball to Taut a String?

    It screwed up my picture so i'll try this again. |\ | \ | \ | \ | \ |___O | | |
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    What Is the Minimum Speed Needed for a Whirling Ball to Taut a String?

    Homework Statement A 2.0 kg ball is attached to a vertical post with two strings, one 2.0 m long and the other 1.0 m long as shown in the figure. If the ball is set whirling in a horizontal circle, what is the minimum speed necessary for the lower string to be taught? If the ball has a...