What is its potential energy in joules, Physics

Assume a crane lifts a 900 kilogram wrecking ball 12 meters above a concrete slab. 

105,840 Joules of potential energy are kept in the wrecking ball. 

Now the ball is dropped.  When the ball is 6 meters above the concrete slab, what is its potential energy in Joules?

Ans- 52,920 Joules

 

Posted Date: 7/9/2013 8:38:09 AM | Location : United States







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