# How much work does it take to raise a 7 kg  weight 28 m ?

Jan 3, 2016

Work$= 1920.8 J$

#### Explanation:

Data:-

Mass$= m = 7 k g$
Height$=$displacement$= h = 28 m$
Work=??

Sol:-
Let $W$ be the weight of the given mass.
W=mg=7*9.8=68.6N

Work$=$force*displacement$= W \cdot h = 68.6 \cdot 28 = 1920.8 J$
$\implies$ Work$= 1920.8 J$