Tuesday

October 21, 2014

October 21, 2014

Posted by **Devan** on Saturday, March 30, 2013 at 9:56am.

It's HARD to do this. To see how hard, consider a perfectly vertical caber with one end on the ground. You then launch the caber vertically with some speed v0 and give it a rotation. What is the minimum kinetic energy in Joules you need to give the caber so that when it lands the caber is perfectly vertical again, but the OTHER end of the caber hits the ground?

Details and assumptions

The acceleration of gravity is −9.8 m/s2.

The caber can be modeled as a uniform rod.

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