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Answer 1 · 2018-02-13T11:54:12

#981"J"#

The formula for potential energy of a body, here denoted as #E_p#, is #E_p=mgh#, where:

#m# is the mass of the body

#h# is the height to which it is raised

#g# is the acceleration due to gravity.

In our situation, #m=50"kg"#, #h=2"m"#, and on Earth, the acceleration due to gravity is always #9.81"m"/"s"^2#.

Inputting these, we get:

#E_p=50*2*9.81#

#E_p=981"J"#

Answer 2 · 2018-02-13T12:12:36

#981J#

Potential energy is given by the formula

#G.P.E.=mgh#

#m# is the mass of the object in kg

#h# is the height of the object in m

#g# is the gravitational acceleration on Earth, which is #9.81m"/"s^2#.

#:.G.P.E.=50*2*9.81=981J#