Question

A teacher pushed a 98 newton desk across a floor for a distance of 5 meters. She exerted a horizontal force
of 20 newtons. How much work was done?

Answer 1

work = F x S

force = 98 newton

displacement = 5m

exerted force = 20 N

so 98N- 20N

78N

W = 78 x 5

W = 390 joule