What is the gravitational potential energy of a # 14 kg# object on a shelf # 5/6 m # high?

1 Answer
Meave60
Dec 10, 2015

The potential gravitational energy will be #"110 J"#.

Explanation:

#"PE"_"grav"=m*g*h#, where #m# is mass in kg, #g# is #"9.81 m/s"^2"#, and #h# is the height.

Given/Known
#m="14 kg"#
#g="9.81 m/s"^2"#
#h="5/6m"#

Solution
Substitute the given and known values into the equation and solve.

#"PE"_"grav"=14"kg"xx9.81"m/s"^2xx5/6m"#

#"PE"_"grav"="110 J"# (rounded to two significant figures)

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