Question #271217

If an object of 80kg falls from a height of 90m what is the KE


Expert's answer

The kinetic energy is equal to the potential energy by conservation of energy:


EK=EP=mgh=80⋅9.8⋅90=70560 J.E_K=E_P=mgh=80·9.8·90=70560\text{ J}.


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