Question

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

Answer 1

Work`=1920.8J`

Explanation:

Data:-

Mass`=m=7kg`
Height`=`displacement`=h=28m`
Work`=??`

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

Work`=`force*displacement`=W*h=68.6*28=1920.8J`
`implies` Work`=1920.8J`