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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 $9.81m"/"s^2$ .

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