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Unformatted text preview: In other words, all kinetic energy is transformed to the potential energy. K . E . = 10J = mgh h = 10J mg = 10J . 2kg 9 . 8m / s 2 = 5 . 10204m 14. (a) P . E . = mgh = 1 . 5kg 9 . 8m / s 2 100m = 1470J . (b) K . E . = 1 2 mv 2 = 1 2 1 . 5kg (12m / s) 2 = 108J (c) Total Energy = P.E. + K.E. = 1578J (d) Just before it reaches the ground, all potential energy is transformed to kinetic energy. Total Energy = 1 2 mv 2 v = s 2 Total Energy m = s 2 1578J 1 . 5kg = 45 . 8694m / s 2...
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- Spring '08