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A 1.80-m tall human lifts a 2.30-kg publication from the ground so the is 2.30 m over the ground.

You are watching: What is the potential energy of the book relative to the ground?

1)

Mass of the publication is

kg.

Height that the human is

m.

Height of the book above the ground is

m.

Potential energy of the object is

.

Where

mass the the thing and
height of the object.

Find thepotential energy of the publication relative come the ground.

Substitute

,
and
in
.

Potential energy of the publication relative come the floor is 51.84 J.

2)

Find thepotential energy of the publication relative come thetop of the persons head.

Whenever calculatingpotential energyrelative to thetop that the person

s head, take into consideration the elevation of theobject over the person

Height of the object over the person

m.

Substitute

,
and
in
.

See more: How To Prove That A Rectangle Has Congruent Diagonals, Prove It Is A Rectangle

Potential energyrelative come thetop that the person