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September 2, 2014

September 2, 2014

Posted by **Matt** on Sunday, October 10, 2010 at 10:58pm.

What force does the runner's hand exert on each weight at the bottom of the swing?

- College Physics -
**drwls**, Monday, October 11, 2010 at 12:49amAt the bottom of the swing, both the weight and the centripetal force M V^2/R must be supperted by the hand.

You need to provide the units of the "weights". Newtons or pounds (weight)? Slugs or kilograms (mass)?

To come up wth a velocity V at the bottom of the arm's swing, you need to know how often the arm swings, and how the maximum velocity is related to the average velocity. (It is probbaly about twice the average)

You have not provided enough information to answer the question.

I wonder if this problem was assigned by a qualfied college physics teacher.

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