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

On a carnival ride, a girl of mass m stands in a cylindrical cage of radius R. The cage is spun about its cylindrical axis so that her speed is v. What is her effective weight?

2. Relevant equations

w^{e}= mg-ma

w_{xe}= mv/R^{2}, w^{e}_{y}= -mg

3. The attempt at a solution

This is an example problem in my book and I'm not sure how they put everything together to solve it. Upon presenting the above forumulas, it says to next use the Pythagorean theorem for it to get:

w^{e}= m √g^{2}+ (v^{2/R)2}

Then goes on to say that the girl's effective weight is greater thanmg.

I'm not sure how they set up their formula into the Pythagorean formula from the formulas above. Any clarification would be appreciated.

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# Homework Help: Effective weight Problem

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