Respuesta :

Answer-: Work done = 13720 J

Given: Mass m = 280 Kg

 Height  h = 5 m

Work = W= ?

Formula: Work = Force x distance

but, Force F = mg

W= fd

W = mgh

W= (280 Kg)(9.8 m/s²)(5 m)  

W = 13,720 Kg.m²/s²

    = 13720 J

So, the work done is 13720 J.

To learn more about Force,

https://brainly.com/question/13191643

#SPJ4