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Physics Homework Problem? 0 votes

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?


please log in or register to include a comment. please log in or register to answer this question. 3 answers 0 votes

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.

answeredOct 1, 2015by cameronMentoreditedOct 1, 2015by cameron you re welcome log in or it is registered to include a comment. 0 votes

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
*
s head.

Height of the object over the person

*
shead is
*
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

*
s head is 11.27 J.

answeredOct 1, 2015by cameronMentor you re welcome log in or it is registered to add a comment. 0 votes