What is the gravitational potential energy of a # 29 kg# object on a shelf # 4 m # high?

1 Answer
reudhreghs
Apr 17, 2016

#1136.8Nm#

Explanation:

Gravitational potential energy is given by

#G.P.E. = mgh#

where #m# is mass, #g# is acceleration of gravity and #h# is height or distance between the two bodies.

In this case, #m# is given as #29kg#, #a# is always around #9.8ms^-2# on Earth, and #h# is #4m#, so

#G.P.E.=29kg*9.8ms^-2*4m#
#=1136.8kgm^2s^-2#
#=1136.8Nm#

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