Physics, 11.02.2021 18:50, CelesteN64

A particle has 37.5 J of kinetic energy and 12.5 J of gravitational potential energy at one point during its fall from a tree to the ground. An instant before striking the ground, how much mechanical energy-rounded to the nearest Joule-does the particle have? Ignore air resistance.

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A particle has 37.5 J of kinetic energy and 12.5 J of gravitational potential energy at one point du...