Question

An object of mass 40 kg is pulled up to height of 0.5m. Calculate the work done.

Answer 1

Work done= m× s

W=40×0.5

=20

Answer 2

mass(m) =40
height (h) (displacement)=0.5
work done=mgh (sometimes)
w=mgh
=40*0.5*9.8
=
$0.5 \times 9.8 \times 40$
=196j