Object A has 604 J of kinetic energy and 285 J of gravitational potential energy. Object B has 481 J of kinetic energy and 300 J of gravitational potential energy. Which object has more mechanical energy? Object A has more mechanical energy. Object B has more mechanical energy. They have the same amount of mechanical energy. There is not enough information to know.

Question

Clark Pena

Chemistry

7 May, 10:35

Object A has 604 J of kinetic energy and 285 J of gravitational potential energy. Object B has 481 J of kinetic energy and 300 J of gravitational potential energy. Which object has more mechanical energy? Object A has more mechanical energy. Object B has more mechanical energy. They have the same amount of mechanical energy. There is not enough information to know.

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Answers (1)

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Joaquin Hull · Answer 1

Mechanical energy can be defined as the sum of kinetic energy and the gravitational potential energy.

Object A has kinetic energy as 604 J and gravitational potential energy as 285 J.

Hence, mechanical energy of A = 604 J + 285 J

= 889 J

Object B has kinetic energy as 481 J and gravitational potential energy as 300 J.

Hence, mechanical energy of A = 481 J + 300 J

= 781J

Hence, object A has more mechanical energy than B.