Question

A child lifts a 5.0-newton toy to a height of 0.50 meters. How much work is done on the toy?

Answer 1

Work done=mgh
W=force*height
W=5N*0.50mts
W=2.5joule

Answer 2

you can use the formula

Work = force x distance

therefore, 

W= (5.0)(.50)
W = 2.5 joules

hope this helps :)