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A child is sliding down a slide at the playgound. is mechanicalenergy conserved
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A child is sliding down a slide at the playgound. is mechanicalenergy conserved

User Alexus
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No. Mechanical energy is not conserved. There's quite a bit of friction on the slide. So some of the potential energy is lost to heat on the way down, and the child arrives at the bottom with hot pants and less kinetic energy than you might expect.

User Abcalphabet
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