Question

A bag of wheat weighs $200kg$. To what height should it be raised so that its potential energy is $9800$ joule $(g=9.8m{s}^{-2})$ :

Answer 1

Potential energy $=m\times g\times h$ (here $m=200kg$, $g=9.8m{s}^{-2}$, potential energy $=9800$ joule)
$9800J=200Kg\times 9.8m{s}^{-2}\times h$
$h=\frac{9800}{200\times 9.8}$
$h=5m$
Thus, the bag of wheat should be raised to a height of $5m$.