# What is the gravitational potential energy of a  21 kg object on a shelf  5 m  high?

Jun 26, 2018

$1029 J$

#### Explanation:

$G P E = m g h$

$m =$mass

$g = 9.8 m {s}^{- 2}$

$h =$height above the standard position

here we ahve

$m = 21 k g$

$h = 5 m$

$\therefore G P E = 21 \times 9.8 \times 5$

$G P E = 1029 J$